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Full List: The 10 Current Largest Cruise Ships on the Planet

If you think cruise ships have gotten bigger, it’s not just your imagination. Whereas a ship built in the 1990s might hold 2,500 passengers and come in at around 75,000 gross tons (a measure of ship size), that’s nowhere near the ships built today.

Today, any new ship from a major line will be at least 140,000 gross tons, with many much larger than that. Passenger counts have also swelled, with many new ships carrying 5,000 cruisers when completely full.

But the largest cruise ships on the planet are in another league altogether. They can measure up to 250,000 gross tons (roughly triple the size of a ship built 30 years ago!) and when at full capacity with crew, have nearly 10,000 people onboard.

Why Are Cruise Ships So Big?

Truth be told, while the size of massive modern ships is staggering, not everyone likes the large ship experience. Some people can find them too crowded and too hard to navigate. But not everyone feels that way, and cruise lines have invested literally billions into building ships that are as large as possible. So what is the appeal of a mega ship?

Amenities/Activities: For passengers, the big advantage of size comes with everything that can be fit onto the ship. Instead of the old days where there was a pool, some loungers, and a buffet, modern mega ships are literal resorts at sea.

There are multiple pools, more than a dozen restaurants, casinos, ziplines, literal parks, ice-skating rinks, rock-climbing walls, spas, and more bars than you can count on your fingers and toes.

All of that combines into an experience that can exceed expectations and keep passengers coming back for more.

Efficiencies of Scale: For cruise lines, one big positive about a larger ship are greater efficiencies. Instead of having the cost of building two smaller ships — and the costs of having two sets of crew to run them both — one larger ship offers the chance for just as many passengers at a lower cost.

Marketing: Finally, one overlooked aspect of why cruise ships are bigger than ever has to do with marketing and publicity. There’s a certain awe and interest that comes with the world’s largest ships. Seeing them in port is essentially a giant billboard for a cruise line. And the largest ships also get significant press due to their size. All of that can translate into more interest, ticket sales, and prices for the newest — and biggest — ships.

With that in mind, here is the current list of the world’s largest cruise ships as of now…

Icon of the Seas

When it comes to the largest ships, Royal Caribbean is the undisputed leader with the six biggest cruise ships in the world. But the king of the fleet — and the largest cruise ship in the world — is Icon of the Seas .

Icon of the Seas doesn’t sail with passengers until 2024, but it’s already made waves. It’s not just the massive size (250,800 gross tons and 7,600 passengers at maximum capacity), but what’s onboard. A full-fledged waterpark, seven different pools, and eight different neighborhoods offer a spot for everyone. This ship looks to change cruising forever.

• Gross Tonnage: 250,800
• Length: 1,198 feet
• Passenger Capacity: 5,610 double occupancy; 7,600 max capacity
• Year Built: 2023

Wonder of the Seas

Wonder of the Seas is the latest edition of Royal Caribbean’s Oasis-class ships (until Utopia of the Seas arrives in 2024), which were the largest class in the world until the new Icon class took the torch. Still, it’s not as if Wonder of the Seas is a slouch.

At 235,600 gross tons, there’s room for 7,084 passengers and an amazing amount to see and do onboard. This includes Central Park, the mid-ship outdoor promenade that winds through lush gardens, and the AquaTheater, where performers put on aquatic shows, including towering high dives at sea.

• Gross Tonnage: 235,600
• Length: 1,188 feet
• Passenger Capacity: 5,734 double occupancy; 7,084 max capacity
• Year Built: 2022

Symphony of the Seas

Each iteration of Oasis-class ships has arrived just slightly larger than the previous when it comes to gross tonnage. That means they each had their time as the largest in the world before another arrived on the scene. In this case, Symphony of the Seas (228,000 gross tons and the ability to hold 6,680 passengers) took the crown in 2018.

Today, it’s the third-largest cruise ship on the planet, but it’s no slouch. It holds seven different neighborhoods, nearly 3,000 staterooms, three waterslides, and Ultimate Abyss — a 10-story dry slide.

• Gross Tonnage: 228,081
• Passenger Capacity: 5,518 double occupancy; 6,680 max capacity
• Year Built: 2018

Harmony of the Seas

Built in 2016, Harmony of the Seas features 18 decks, more than 225,000 gross tons (about 10% smaller than Icon of the Seas) and can carry nearly 6,700 passengers when completely full. That’s good enough to make it the fourth-largest cruise ship in the world.

It features many of the same components of other ships in the class, like the adults-only Solarium, Central Park, and the AquaTheater. That’s not to mention 17 different spots to grab a bite to eat.

• Gross Tonnage: 226,963
• Passenger Capacity: 5,479 double occupancy; 6,687 max capacity
• Year Built: 2016

Oasis of the Seas

The ship that started the trend of truly mega ships is also the namesake of the Oasis class — Oasis of the Seas. If you notice, most of the largest ships on our list were built recently. This ship first began sailing in 2009 and set off the “arms race” of larger ships that continues today.

Following a refurbishment, it now features three waterslides, a dozen lounges, 2,801 cabins (including one with a panoramic view right above the ship’s bridge), a splash pad for kids, and even an escape room themed like the 1960s NASA mission control. And did we mention 20 different places to find something to eat?

• Gross Tonnage: 226,838
• Length: 1,187 feet
• Passenger Capacity: 5,602 double occupancy; 6,771 max capacity
• Year Built: 2009

Allure of the Seas

Following a refurbishment of Oasis of the Seas, Allure of the Seas — which was the second ship in the class and built in 2010 — is actually now the smallest of the group based on tonnage. Still, that’s good enough for sixth largest in the world at “just” 225,000 gross tons.

On the ship, you’ll find 18 decks, 2,748 staterooms and more than 6,800 passengers when completely full. That’s definitely a lot of people, but remember that you also have a lot more space to spread out, giving plenty of elbow room.

• Gross Tonnage: 225,282
• Passenger Capacity: 5,496 double occupancy; 6,826 max capacity
• Year Built: 2010

MSC World Europa

While Royal Caribbean has a lock on the largest ships, the title of largest cruise ship from outside that cruise line goes to MSC World Europa.

Coming in at almost 216,000 gross tons, it’s roughly 14% smaller than Icon of the Seas. But don’t think it’s some slouch. From bumper cars to seven pools to an 11-story slide, there’s no shortage of things for kids to do. Adults will love the 13 different dining options and an indoor promenade or Panorama Lounge for shopping, having a drink, or just relaxing.

This ship will be joined in 2025 by sister-ship MSC World America, set to sail stateside.

• Gross Tonnage: 215,863
• Length: 1,094 feet
• Passenger Capacity: 5,231 double occupancy; 6,762 max capacity

Costa Smeralda/Costa Toscana (Tie)

These two ships come in at a tie for the eighth-largest cruise ship in the world. Built in 2019 and 2021, respectively, they both belong to Costa Cruises. And if the shape of the ship looks familiar, that’s because Costa is a sister line to Carnival. A similar design is used for Carnival’s largest ships, Mardi Gras, Celebration, and Jubilee. However, those ships come in just under the 185,000 gross tons seen with Smeralda and Toscana.

Both ships offer 13 pools and hot tubs, nearly a dozen restaurants and just under 20 bars and lounges. And if you like balcony views? There are 1,550 balcony rooms on each, providing plenty of options for the roughly 6,500 passengers that can sail at full capacity.

• Gross Tonnage: 185,010
• Length: 1,106 feet
• Passenger Capacity: 5,224 double occupancy; 6,554 max capacity
• Year Built: 2019/2021

P&O Arvia

Taking the crown as the 10th-largest cruise ship in the world is Arvia from P&O Cruises. Measuring just under 185,000 gross tons, it offer a similar design to ships like Costa Smeralda and Carnival Celebration, but don’t think these ships are all the same.

For instance, Arvia features a unique Skydome area that is a pool area with retractable roof by day and an entertainment venue by night. It also features its own rum distillery onboard, meaning you can take home rum literally made on the ship. Kids will love the Altitude zone that features a ropes course, mini-golf, and more. There’s also Mission Control, a submarine-themed escape room.

All told, a reported 6,685 passengers can enjoy the ship at one time.

• Gross Tonnage: 184,700
• Length: 1,130 feet
• Passenger Capacity: 5,200 double occupancy; 6,685 max capacity

More on Large Ships:

• The World’s Largest Cruise Ship Compared to Famous Places
• The World’s Largest Cruise Ships Sailing For Each Line (With Photos)
• Photos: See the New Icon of the Seas Sail for the First Time

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Want to embark on the world's biggest cruise ship? These 10 make quite a splash.

Does size really matter?

We’re talking, of course, about the world’s largest cruise ships. For some travelers, bigger automatically means better. But if you’re going to shell out your hard-earned dollars for a vacation on one of the top lines, it’s important to research if the experience is a good fit for you.

You may be looking for a party-packed weekend with other young travelers or a family adventure with something for both kids and adults. But if you won’t settle for anything but colossal, here’s what you need to know about record-breaking ships. 

What is the biggest cruise ship?

The Royal Caribbean’s Icon of the Seas is the biggest cruise ship in the world. The nearly 1,200-foot ship set sail in January 2024 and accommodates 5,610 guests and 2,350 crew members, according to Royal Caribbean. 

According to the DNV, the leading maritime register, the Icon of the Seas has a gross tonnage of 248,663 . Gross tonnage measures a ship’s total volume. 

Icon of the Seas’ maiden voyage was so highly anticipated that it nearly sold out in just a few hours, Business Insider reported. Some cruise-goers even paid $75,000 a week to stay in an exclusive three-story townhouse complete with private balconies, a whirlpool, a backyard and slides. 

Here are the 10 largest cruise ships in the world and how much they weigh in gross tonnage, according to the DNV and VesselFinder :

• Icon of the Seas (Royal Caribbean): 248,663
• Utopia of the Seas (Royal Caribbean): 236,473  
• Wonder of the Seas (Royal Caribbean): 235,600
• Symphony of the Seas (Royal Caribbean): 228,081
• Harmony of the Seas (Royal Caribbean): 226,963
• Oasis of the Seas (Royal Caribbean): 226,838
• Allure of the Seas (Royal Caribbean): 225,282
• MSC World Europa (MSC Cruises): 215,863
• Costa Toscana (Costa Cruises): 186,364
• P&O Arvia (P&O Cruises): 185,581

You will get your steps in: How to make the most of the Icon of the Seas

What is the biggest ship ever built?

The Icon of the Seas might be the biggest cruise ship to set sail, but it’s not the largest boat in the history of maritime travel. The Seawise Giant, also known as the Knock Nevis, was the biggest ship ever built at 564,739 tons, according to The New York Times. 

The oil tanker was built in the 1970s but caught fire and sank in 1988 after Iraqi planes bombed an offshore terminal. A Norwegian company rescued it a year later from shallow waters and repaired it. The Seawise Giant continued transporting oil until its final journey concluded in December 2009.

How big was the Titanic?

The Titanic was about 883 feet long and had a gross tonnage of 46,329 tons – it’s sizable, but much smaller than the world’s biggest ship; the Icon of the Seas which is 1,200 feet long and has a gross tonnage of 248,663.

There were over 2,200 passengers on the Titanic – more than 1,500 of them died in the 1912 sinking.  

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The Largest Cruise Ships in the World

Courtesy of Royal Caribbean International

With every year comes bigger and grander cruise ships.

Just when you think cruise ships can't get any larger, a major cruise line unveils yet another longer, taller and grander state-of-the-art vessel – with the capacity to carry the population of a small town. To put the size of today's megaships into perspective: They often stretch three times longer than a 120-yard football field, and some feature nearly two dozen decks or measure more than 215 feet wide.

So, if you're looking for a vacation aboard a large-scale vessel, consider booking a voyage on one of the biggest cruise ships in the world. With cutting-edge technology and entertainment, world-class dining, and endless attractions and activities for cruisers of all ages, you may not even want to leave the ship. Here are the biggest cruise ships, arranged by gross tonnage.

• 1. Royal Caribbean Icon of the Seas
• 2. Royal Caribbean Utopia of the Seas
• 3. Royal Caribbean Wonder of the Seas
• 4. Royal Caribbean Symphony of the Seas
• 5. Royal Caribbean Harmony of the Seas
• 6. Royal Caribbean Oasis of the Seas
• 7. Royal Caribbean Allure of the Seas
• 8. MSC World Europa
• 9. Costa Smeralda
• 10. Costa Toscana
• 11. P&O Cruises Arvia
• 12. AIDAcosma
• 13. P&O Cruises Iona
• 14. AIDAnova
• 15. Carnival Jubilee
• 16. Carnival Celebration
• 17. MSC Euribia
• 18. MSC Virtuosa
• 19. Carnival Mardi Gras
• 20. MSC Meraviglia
• 21. Norwegian Encore

Find your perfect cruise

Royal Caribbean Icon of the Seas

Length: 1,198 feet

Width: 213 feet

Gross tons: 250,800

Maximum number of passengers: 7,600

Icon of the Seas will be the largest cruise ship afloat when it debuts in January 2024. The next-level megaship is Royal Caribbean 's first Icon-class vessel and the first of three ships powered by liquefied natural gas, or LNG, which is considered a more sustainable alternative to other fuel options. The ship will have 2,805 staterooms and carry up to 2,350 crew. There's no end to the fun with eight unique neighborhoods, including the new Surfside: a stay-all-day space designed specifically for families.

Other features on the ship include seven pools, nine whirlpools and six record-breaking waterslides. There are also more than 20 new dining venues, such as the swanky Empire Supper Club, which features an eight-course tasting menu; the AquaDome Market, the line's first food hall; and sushi restaurant Izumi in the Park. Cruisers will also find other international cuisine, including Japanese, Mexican and Italian fare, as well as The Lemon Post, the Surfside Eatery and Pier 7 in the Surfside neighborhood.

Read: The Newest Royal Caribbean Ships

Royal Caribbean Utopia of the Seas

Length: 1,188 feet

Width: 211 feet

Gross tons: 236,860

Maximum passengers: 6,788

Royal Caribbean's first LNG-powered Oasis-class ship will sail its debut voyage in July 2024. The new ship will have 2,834 staterooms and up to 2,290 crew members, as well as eight neighborhoods to keep passengers entertained. Ten complimentary dining venues include the line's new food truck concept, The Spare Tire, which serves up handheld eats on the pool deck. The ship will also feature sloping beach-entry and resort-style pools, plus three Lime & Coconut bars on the outdoor deck.

In total, there are more than 40 dining options, bars and lounges on Utopia of the Seas. Many of Royal Caribbean's specialty dining and bar favorites are returning, such as Chops Grille, Giovanni's Italian Kitchen & Wine Bar, Rising Tide Bar and Vue Bar. Guests will also find familiar entertainment offerings with rock climbing walls, the AquaTheater, Splashaway Bay, laser tag, mini-golf, the Sports Court, Studio B and much more. With two casinos, five pools and a visit to private island Perfect Day at CocoCay, you'll never run out of things to do.

Read: The Top New Cruise Ships

Royal Caribbean Wonder of the Seas

Michel Verdure | Courtesy of Royal Caribbean International

Gross tons: 235,600

Maximum passengers: 7,084

Royal Caribbean's current largest ship at sea, Wonder of the Seas , first set sail in March 2022. The Oasis-class vessel has 2,867 staterooms and carries as many as 2,204 crew members. While you may get lost on this ship, you'll never be bored. Features include eight unique neighborhoods – such as Central Park, the Boardwalk, and the new Suite Class neighborhood, an exclusive space for suite guests.

Take advantage of the AquaTheater, an outdoor live entertainment venue with a 30-foot diving platform and incredible ocean views. Wonder Playscape is an underwater-themed outdoor space for kids filled with slides, climbing walls, games and more. You can also enjoy a few of Royal Caribbean's Oasis-class favorites, such as the FlowRider surf simulator, the rock climbing wall or laser tag at the Battle for Planet Z. If you dare, head into the Ultimate Abyss: Billed as the tallest waterslide at sea, it towers 150 feet above sea level and features an exhilarating 13-second ride through 10 stories of dark, winding tunnels.

When hunger strikes, dine at your pick of more than 20 complimentary and specialty restaurants, including the new Mason Jar Southern Restaurant & Bar. If you're craving a cold beer, a cocktail or a cup of Starbucks coffee, you'll have roughly a dozen bars and lounges at your disposal.

Read:  The Top Party Cruises

Royal Caribbean Symphony of the Seas

Width: 215.5 feet

Gross tons: 228,081

Maximum passengers: 6,680

Royal Caribbean's Symphony of the Seas , another Oasis-class ship, debuted in April 2018. This ship features 2,759 passenger staterooms and accommodates 2,200 crew members. There are seven distinct neighborhoods, four pools, roughly 20 restaurants (about half of which are specialty venues), and about a dozen bars and lounges. The ship even boasts two robotic bartenders that whip up drinks at the Bionic Bar.

Adults can enjoy Broadway-style shows in the onboard theaters and major international sports games at Playmakers Sports Bar & Arcade. Meanwhile, kids can cool down at the Splashaway Bay water park, soar on a zip line nine decks high through the Boardwalk neighborhood, try out rock climbing or attend a show at the AquaTheater.

Read:  Royal Caribbean vs. Carnival

Royal Caribbean Harmony of the Seas

Gross tons: 226,963

Maximum passengers: 6,687

Another Oasis-class ship, Royal Caribbean's Harmony of the Seas has been sailing since May 2016. The vessel features 2,747 staterooms and up to 2,200 crew members. Cruisers have plenty of places to dine thanks to eight complimentary venues – including the main dining room and Windjammer Marketplace, a globally inspired buffet – as well as nine specialty restaurants serving everything from burgers and shakes to Italian fare. The Boardwalk, one of the ship's seven neighborhoods, is a favorite spot for cruisers; it contains casual eateries, retail shops and carnival games.

Harmony of the Seas also has Splashaway Bay, the Ultimate Abyss waterslide and a trio of slides called The Perfect Storm. In the evening, don't miss a pre-dinner cocktail at the Rising Tide Bar, which offers a ride between the Central Park neighborhood and the Royal Promenade with dazzling skylight views. Sit back and sip your drink while the entire bar slowly floats between the decks.

Royal Caribbean Oasis of the Seas

Simon Brooke | Courtesy of Royal Caribbean International

Length: 1,187 feet

Width: 215 feet

Gross tons: 226,838

Maximum passengers: 6,771

Royal Caribbean's Oasis of the Seas was the largest cruise ship in the world when it was launched in 2009. The line's debut Oasis-class ship is nearly five times bigger than the Titanic by gross tonnage; it has 2,801 staterooms and carries 2,109 crew members.

Oasis of the Seas was reimagined in 2019, with many added amenities that are on newer Oasis-class ships, such as FlowRider simulators, the Perfect Storm waterslides, the Ultimate Abyss and Playmakers Sports Bar & Arcade. Across the ship's seven distinct neighborhoods, you'll also find state-of-the-art technology such as VOOM, billed as the fastest internet connection on the high seas – plus exciting live performances and theater productions, laser tag, escape rooms and more.

Royal Caribbean Allure of the Seas

Gross tons: 225,282

Maximum passengers: 6,826

Embarking for the first time in 2010, Allure of the Seas was Royal Caribbean's second Oasis-class vessel. The ship underwent a refurbishment in 2015. Allure of the Seas has 2,748 staterooms and 2,054 crew. Onboard highlights include seven neighborhoods, four pools, and several whirlpools and hot tubs, plus more than 20 dining venues and too many bars and lounges to count.

There are also plenty of entertainment options for guests of all ages, including an ice skating rink, the Sports Court, a nine-deck-high zip line, two rock climbing walls and two FlowRider simulators (a Royal Caribbean favorite). Kids will especially enjoy the interactive H2O Zone Water Park. Adults on this ship will appreciate Broadway productions like "Mamma Mia!," aerial acrobatic performances in Oceanaria (an original AquaTheater production) and '70s disco dance parties. If you find yourself on board for business reasons, rest assured that the ship's conference facilities can host as many as 1,394 guests.

Find a Royal Caribbean cruise on GoToSea.

MSC World Europa

Courtesy of MSC Cruises

Length: 1,093 feet

Width: 154 feet

Gross tons: 215,863

Maximum passengers: 6,762

MSC World Europa was one of the most anticipated new cruise ships when it launched in December 2022 as the first vessel in the line's MSC World-class fleet. It's also the first LNG-propelled ship by MSC Cruises , reaching a maximum cruising speed of 22.7 knots.

The ship's futuristic interior and exterior design features a 341-foot-long promenade. Half the promenade is covered with the Meraviglia-class LED sky screens, while the other half is open-air and offers ocean views. MSC World Europa features 2,626 staterooms and can house 2,138 crew members. As a special touch, each passenger deck is named after an international city, including London, Paris, Lisbon and Rome.

The ship is divided into distinct areas, with a quiet zen district for adults and a family zone that has bumper cars and roller skating. At the fleet's largest onboard water park, younger cruisers will find a twisty, stainless steel tunnel slide towering 11 decks high at the center of the ship. Luna Park Arena, the ship's 300-seat multifunction entertainment venue, can accommodate almost any performance or event.

When you're exhausted from all of the action, grab a bite to eat at one of 13 restaurants or a drink at a selection of bars and cafes. Then, take time to relax and unwind with a signature treatment at the Balinese-inspired MSC Aurea Spa. For an all-inclusive VIP experience during your voyage, book stateroom accommodations in the MSC Yacht Club. This exclusive part of the ship boasts premium suites, a separate pool, a private restaurant and lounge, butler service, and other amenities.

Costa Smeralda

Courtesy of Costa Cruises

Length: 1,106 feet

Width: 138 feet

Gross tons: 185,000

Maximum passengers: 6,554

Costa Smeralda was the first of the two Excellence-class vessels in the Costa Cruises fleet. The vessel debuted in 2019 as the Italian cruise line's largest ship to date. It was also the line's first vessel to use LNG power at sea and in port. The ship has 2,612 staterooms and can carry as many as 1,678 crew members.

Cruisers will never go hungry or thirsty, thanks to the 11 restaurants and snack bars plus 19 bars and lounges on Smeralda . One of the most notable dining venues on board is Archipelago, which serves innovative cuisine created by three world-renowned chefs. If you're interested in culinary pursuits, join other passengers for a cooking class at sea in the Food LAB. When it comes to entertainment, centrally located Colosseo – modeled after the piazzas across Italy – is the place to go for socializing and live performances. What's more, the ship also has 13 pools and hot tubs, an aqua park, the Beauty Spa Solemio, and the Squok Club for kids ages 3 to 11.

Costa Toscana

Costa Toscana, Costa Cruises' newest flagship and the second Excellence-class vessel in the fleet, set sail on its debut voyage in March 2022. Similar in size and passenger capacity to Costa Smeralda, Toscana is also LNG-powered. This vessel has 2,663 staterooms, and there can be up to 1,678 crew members on board.

Similar to Smeralda, Colosseo is the centerpiece of Toscana; you'll find live entertainment and themed bars in this area. There are 11 restaurants and snack bars plus 19 bars and lounges on the ship. For a refreshing aperitif with a view, head to the Aperol Spritz Bar, which features special beach cocktails. Another dining highlight is Sushino at Costa, the line's new sushi bistro. After dinner, take in unparalleled views of the sea along the Volare Skywalk, the highest point of the ship, which towers more than 200 feet above sea level.

Explore Costa Cruises deals on GoToSea.

P&O Cruises Arvia

Courtesy of P&O Cruises

Length: 1,130 feet

Maximum passengers: 5,200

Arvia joined the P&O fleet as sister ship to Iona in December 2022. It is also LNG-powered, has 2,614 cabins and carries up to 1,800 crew. The family-friendly ship offers guests many firsts, including Altitude, a new activity area with an escape room, a high-ropes experience, the Splash Valley aqua zone, the Sports Arena and much more.

Arvia has 30 bars and restaurants. New dining venues include the American-inspired 6th Street Diner and Green & Co. feat. Mizuhana, which focuses on sushi and plant-based dishes. For entertainment, plan to see the line's production of "The Official Take That Musical," an adaptation of London West End musical "The Band." Guests can also head to the dome beneath the SkyDome retractable roof for live performances, aerial displays, movies on the giant SeaScreen and DJ parties under the starry skies.

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Courtesy of AIDA Cruises

Gross tons: 184,600

Maximum passengers: 6,654

The sister ship to AIDAnova, AIDAcosma set sail in early 2022. The partly LNG-powered AIDA Cruises vessel has 2,732 staterooms and the capacity for up to around 1,500 crew members. With 17 restaurants and 23 bars and cafes, AIDAcosma offers passengers a seemingly endless number of venues to dine and imbibe. Other onboard attractions include a four-deck outdoor area, complete with an infinity pool and an expansive area for sunbathing; an indoor playground with a bouldering wall and ropes course; the Body & Soul Spa; and a 360-degree stage at the Theatrium.

P&O Cruises Iona

Length: 1,129 feet

Gross tons: 184,000

P&O Cruises' Iona, which launched in spring 2021, has the distinction of being the first LNG-powered British cruise ship. The family-friendly vessel has 2,614 cabins and carries 1,800 crew members. Iona's top features include the two-story SkyDome, a gin distillery, four pools, 10 entertainment venues, and 30 restaurants and bars offering a wide variety of food and beverage options.

With selections ranging from casual eateries to gelaterias to Indian- and British-inspired cuisine at Sindhu, you won't get bored with the restaurant choices. For an especially unique meal, dine and sip wine while watching aerial performances in the Grand Atrium at The Glass House. Or, enjoy dinner at The Limelight Club, an adults-only supper club venue featuring vocal performances and other live music. After dinner, check out the entertainment around the ship, including aerial productions in the Grand Atrium, guest and crew shows in Headliners, late night dancing in The Club House, and performances in partnership with the entertainment company Creativiva in the SkyDome.

Gross tons: 183,900

When German line AIDA Cruises' first Helios-class ship, AIDAnova, debuted in December 2018, it was the first LNG-powered cruise ship in the world. The ship is equipped with 2,626 staterooms, including the two-deck Penthouse Suite, and carries around 1,500 crew members. You won't miss this ship when it's docked in port: It features the line's signature exterior design, with bold red lips at the ship's bow and blue-and-yellow eyes on the port and starboard sides.

While on board, passengers can check out 17 restaurants, along with 23 bars and lounges; party the night away at the Beach Club; and take in live performances on the 360-degree stage in the Theatrium. When it's time to relax, head to the Body & Soul Spa, where you can book a massage, spend time in one of the hot tubs or saunas, take a dip in the private pool, and chill out on the private spa sun deck.

Carnival Jubilee

Width: 137 feet

Gross tons: 183,521

Maximum passengers: 6,631

Carnival Jubilee, as sister ship to Carnival Celebration and Carnival Mardi Gras, will offer many of the same features and amenities as its two predecessors when it launches in December 2023. The new vessel will have 2,687 staterooms, 1,735 crew and six zones of fun. Currents and The Shores are new to Jubilee . Currents is inspired by the underworld of the ocean with mermaids and sea monsters; it's designed with new bars, restaurants, music venues and high-tech spaces, including a wave-shaped LED ceiling and six LED windows that virtually take guests under the sea. The Shores is all about the outdoors, inspired by beaches and boardwalks. Cruisers can grab a slice of pizza at Coastal Slice, a hot dog at Beach Buns and a cocktail at Marina Bar.

On Jubilee, you'll also find Carnival Cruise Line favorites such as BOLT, the first and fastest roller coaster at sea, as well as Waterworks, the onboard water park with twin racing slides, three spiraling slides and more. The line's "next-level fun" ship will also include familiar eateries and lounges like Shaquille O'Neal's Big Chicken, Guy's Pig & Anchor Bar-B-Que Smokehouse, Cucina del Capitano, Fahrenheit 555 Steakhouse and more.

Carnival Celebration

Courtesy of Carnival Cruise Line

Carnival Celebration sailed its inaugural cruise in November 2022. Carnival's second-newest ship at sea is LNG-powered and the second in the line's Excel class, with 2,687 staterooms and as many as 1,735 crew. Guests will find new attractions to enjoy on the ship, such as the partnership with the Kennedy Space Center at Space Cruisers: This program is designed for children ages 2 to 11 at Camp Ocean.

Adults can check out the new bar at Latitudes, which features specialty cocktails and outdoor scenery through the virtual windows. Celebration has a variety of complimentary dining venues, including Shaq's Big Chicken, Guy's Burger Joint and Mexican favorites at BlueIguana Cantina. There is also a selection of specialty restaurants like Emeril's Bistro 1397, Rudi's Seagrill, the Steakhouse and Bonsai Teppanyaki. For action and 360-degree views of the ocean from the top of the ship, take a spin around the track on the BOLT roller coaster.

Compare Carnival Cruises on GoToSea.

MSC Euribia

Length: 1,087 feet

Width: 141 feet

Gross tons: 181,541

Maximum passengers: 6,327

MSC Euribia, the newest MSC Cruises ship, debuted in June 2023. The line's second LNG-powered vessel – and the fifth Meraviglia-class ship – has 2,419 cabins and can carry as many as 1,711 crew members. The ship's hull features Alex Flämig's artwork "#SaveTheSea" to highlight the company's dedication to preserving the marine ecosystem.

On board Euribia , guests will find five pools and 11 dining venues, offering everything from sushi and teppanyaki to Latin American street food. There are also 21 bars and lounges, the MSC Aurea Spa, the Ocean Cay Aquapark, luxury retail shopping and more. Two additional highlights are the longest – and most impressive – LED Dome at Sea, which covers the ceiling of Galleria Euribia, and the reimagined Carousel Lounge. The beautiful, updated space features floor-to-ceiling windows, outdoor terraces and cozy seating to enjoy live entertainment, including performances by one of the largest big bands at sea.

MSC Virtuosa

Maximum passengers: 6,334

This vessel launched in 2021 as a sister ship to MSC Grandiosa , the line's other Meraviglia Plus-class ship. MSC Virtuosa has 2,421 staterooms and carries around 1,704 crew members. It offers cruisers 11 dining venues plus 21 bars and lounges. At the heart of the ship, Galleria Virtuosa houses the largest shopping area on a cruise ship, with more than 12,500 square feet of retail space. In this area, you'll also find entertainment venues, restaurants and cocktail bars. And don't forget to look up: An impressive LED dome, one of the longest at sea, spans the ceiling of the promenade.

Another highlight to check out during your voyage is the MSC Starship Club, which features Rob, the first humanoid robotic bartender on a cruise ship. The multilingual expert mixologist even tells jokes and will show you a dance move or two. After all the indoor fun, head outside for a cool dip in one of MSC Virtuosa's five pools or take a ride on the slide at the Savannah Aquapark.

Book an MSC Cruise on GoToSea.

Carnival Mardi Gras

Gross tons: 180,000

Maximum passengers: 6,465

One of Carnival Cruise Line's newest ships, Mardi Gras , debuted in July 2021. Its name honors the line's first ship, the TSS Mardi Gras, which launched in 1972. The original Mardi Gras was around 27,000 gross tons and 650 feet long – in contrast, the new Carnival Mardi Gras weighs more than six times as much and is nearly twice as long. This ship also holds the title as North America's first LNG-powered ship. It has 2,641 staterooms and holds up to 1,745 crew members.

Six themed areas each offer unique dining and entertainment experiences. For New Orleans -inspired cuisine, head to the French Quarter; there, you'll find Emeril's Bistro 1396 and The Brass Magnolia, a bar reminiscent of The Big Easy's jazz culture and Garden District. Don't miss one of the ship's top onboard attractions: the BOLT roller coaster, where riders can hit speeds of nearly 40 mph at 187 feet above sea level.

Read: The Top Themed Cruises

MSC Meraviglia

Courtesy of Port Miami for MSC Cruises

Length: 1,036 feet

Gross tons: 171,598

Maximum passengers: 5,655

MSC Cruises' Meraviglia first set sail in 2017 with an impressive 2,244 staterooms and the capacity to carry 1,536 crew members. A dozen restaurants offer a wide variety of cuisines, including a Spanish tapas bar with dishes created by a Michelin-starred chef, Japanese teppanyaki, Italian fare, fresh seafood, steaks and more. There are also 20 bars, lounges and cafes serving everything from Champagne and cocktails to ice cream and crepes.

The central highlight of the ship is Galleria Meraviglia, a 315-foot promenade with eateries, boutiques and evening parties. Nightly entertainment includes live performances and shows in the Broadway Theatre and the Carousel Lounge. Kids will find plenty to do, as well: There's an Aquapark, an F1 simulator, a flight simulator, LEGO play areas, bowling and more. When it's time to wind down, book a signature treatment at the MSC Aurea Spa.

Norwegian Encore

Length: 1,094 feet

Width: 136 feet

Gross tons: 169,116

Maximum passengers: 3,998 (double occupancy)

Norwegian Encore was built in 2019 as one of Norwegian Cruise Line 's Breakaway Plus-class ships. The vessel has 2,040 staterooms and carries 1,735 crew members. There are several complimentary culinary venues on board, including three main dining rooms, The Local Bar & Grill, the Garden Café buffet, and grab-and-go options. Specialty dining restaurants offer a variety of cuisines, from seafood to steak to Japanese teppanyaki.

When it's time for cocktail hour, 14 bars and lounges serve up everything from cold brews to fine wine and whiskey. For a pre-dinner option, head up to the Observation Lounge for panoramic ocean views. Norwegian Encore is also home to several entertainment venues featuring award-winning live shows and performances.

You'll find the most fun on the ship's top decks. First, head to the Encore Speedway race track, which takes thrill-seekers on a heart-pumping ride through high-speed curves extending 13 feet off the side of the ship. Also at the top of the vessel you'll find The Haven: Norwegian's exclusive "ship within a ship" concept boasts luxurious suites, villas and penthouses with balconies. These luxe accommodations include perks like 24-hour butler service, a concierge and a private sun deck.

Find a Norwegian Cruise Line cruise on GoToSea.

Frequently Asked Questions

The largest cruise ship currently in service is Royal Caribbean's Wonder of the Seas, at more than 235,000 gross tons. Icon of the Seas will become the largest cruise ship in the world at 250,000-plus gross tons after its launch, set for January 2024.

Carnival Jubilee, scheduled to debut in December 2023, and Carnival Celebration are the line's largest ships at 183,521 gross tons.

The line's largest ship is Disney Wish at about 144,000 gross tons. The vessel is 1,119 feet in length and 128 feet wide; it has 1,254 staterooms and carries up to 4,000 passengers and 1,555 crew.

Why Trust U.S. News Travel

Gwen Pratesi has been an avid cruiser since her early 20s. She has sailed on nearly every type of cruise ship built, including the newest megaships, paddle-wheelers on the Mississippi River, and an 18-stateroom river ship on the Mekong River in Vietnam and Cambodia. She has also cruised on a traditional masted sailing ship and on a small luxury expedition vessel in Antarctica crossing the notorious Drake Passage twice. She covers the travel and culinary industries for major publications including U.S. News & World Report.

You might also be interested in:

• The Top World Cruises
• The Top Cruises on Small Ships
• The Top Gay Cruises
• Cruise Packing List Essentials
• The Top Cruise Insurance

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Top 10 Largest Cruise Ships in the World 2024

The world of cruising has grown tremendously over the years, with cruise ships becoming larger, more luxurious, and more innovative than ever before. These floating cities offer a blend of adventure, relaxation, and entertainment that appeals to travelers from all walks of life. In 2024, the largest cruise ships in the world are marvels of engineering, each offering a unique experience. Here’s a look at the top 10 largest cruise ships in the world, presented from the bottom of the list to the very top.

10. Carnival Mardi Gras – Carnival Cruise Line

Gross Tonnage:  180,000 GT Length:  344 meters Passenger Capacity:  6,500 (max)

At the 10th spot is  Carnival Mardi Gras , a ship that honors the legacy of Carnival Cruise Line’s very first vessel, also named Mardi Gras. Launched in 2021, this ship is notable for being the first in North America to be powered by Liquefied Natural Gas (LNG), a cleaner energy source that aligns with the industry’s move towards sustainability. Carnival Mardi Gras is also the first ship to feature BOLT, a roller coaster at sea, giving passengers a thrilling experience with stunning ocean views. The ship is divided into six themed zones, each offering a unique mix of dining, entertainment, and leisure activities.

9. MSC Virtuosa – MSC Cruises

Gross Tonnage:  181,541 GT Length:  331 meters Passenger Capacity:  6,334 (max)

Ninth on the list is  MSC Virtuosa , a sister ship to MSC Grandiosa, launched in 2021. Designed with families in mind, MSC Virtuosa offers a variety of activities for children and teens, as well as cutting-edge entertainment technology. One of the ship’s standout features is its indoor promenade, covered by the longest LED dome at sea, which creates an immersive experience with ever-changing light shows. MSC Virtuosa also includes the MSC Yacht Club, an exclusive luxury area within the ship offering personalized service and upscale amenities.

8. MSC Grandiosa – MSC Cruises

Coming in eighth is  MSC Grandiosa , launched in 2019. This ship quickly gained popularity for its combination of grandeur and entertainment. The central promenade, covered by a stunning LED dome, is a major highlight, offering passengers a vibrant social space with various dining and shopping options. MSC Grandiosa also features a range of entertainment choices, including exclusive Cirque du Soleil at Sea performances, ensuring that guests have a memorable experience from start to finish.

7. MSC World Europa – MSC Cruises

Gross Tonnage:  205,700 GT Length:  333 meters Passenger Capacity:  6,762 (max)

The  MSC World Europa  stands out as the seventh largest cruise ship and the flagship of MSC Cruises, launched in 2022. It’s the largest ship in the MSC fleet and marks a significant step towards sustainability with its LNG power source, reducing emissions significantly. The ship’s innovative Y-shaped aft design opens onto a 104-meter-long Europa Promenade, offering breathtaking sea views. Onboard, passengers can indulge in a variety of gourmet dining options, relax in the luxurious spa, or enjoy the many entertainment venues that the ship has to offer.

6. Allure of the Seas – Royal Caribbean International

Gross Tonnage:  225,282 GT Length:  362 meters Passenger Capacity:  6,780 (max)

In sixth place is  Allure of the Seas , one of Royal Caribbean International’s Oasis Class ships, launched in 2010. Allure of the Seas features a unique blend of entertainment and luxury, with attractions like the Broadway musical “Mamma Mia!” and a two-deck-high dance hall. The ship’s open-air Central Park, lined with lush gardens and specialty restaurants, provides a serene escape from the bustling activity elsewhere on the ship. With its combination of large-scale entertainment and intimate spaces, Allure of the Seas offers something for everyone.

5. Oasis of the Seas – Royal Caribbean International

Gross Tonnage:  226,838 GT Length:  360 meters Passenger Capacity:  6,780 (max)

Oasis of the Seas  takes the fifth spot and was a trailblazer when it was launched in 2009 as the first ship to exceed 220,000 gross tons. This ship introduced the concept of distinct “neighborhoods” at sea, each offering different experiences. From the lively Boardwalk with its full-sized carousel to the tranquil Central Park, passengers have a variety of environments to explore. Oasis of the Seas underwent a significant refurbishment in 2019, adding new features like the Ultimate Abyss slide and revitalized dining and entertainment options.

4. Harmony of the Seas – Royal Caribbean International

Gross Tonnage:  226,963 GT Length:  362 meters Passenger Capacity:  6,687 (max)

Harmony of the Seas , launched in 2016, is another member of Royal Caribbean’s Oasis Class and ranks fourth on the list. Harmony of the Seas is designed for both excitement and relaxation, offering attractions such as the Perfect Storm waterslides and the Ultimate Abyss, the tallest slide at sea. The ship’s seven distinct neighborhoods cater to different interests, from the lush Central Park to the action-packed Boardwalk. Harmony of the Seas also emphasizes eco-friendly technology, making it one of the most energy-efficient ships in the world.

3. Symphony of the Seas – Royal Caribbean International

Gross Tonnage:  228,081 GT Length:  362 meters Passenger Capacity:  6,680 (max)

Taking the third spot is  Symphony of the Seas , which was the largest cruise ship in the world upon its launch in 2018. Symphony of the Seas is part of the Oasis Class and is designed for thrill-seekers, with attractions like the Ultimate Abyss and FlowRider, a surfing simulator. The ship also offers an impressive array of dining options, from casual eateries to gourmet restaurants, and entertainment venues that host Broadway-style shows and live music performances. Its design and amenities make it a popular choice for families and adventure seekers alike.

2. Wonder of the Seas – Royal Caribbean International

Gross Tonnage:  236,857 GT Length:  362 meters Passenger Capacity:  7,084 (max)

The second-largest cruise ship in the world is  Wonder of the Seas , another impressive vessel from Royal Caribbean International, launched in 2022. Wonder of the Seas is designed to be the ultimate family vacation destination, offering a wide range of activities and amenities for all ages. The ship features eight distinct neighborhoods, including the Boardwalk, which brings a seaside amusement park atmosphere onboard, and the Royal Promenade, a bustling shopping and dining area. With luxurious accommodations, world-class dining, and a variety of entertainment options, Wonder of the Seas sets a new standard for cruising.

1. Icon of the Seas – Royal Caribbean International

Gross Tonnage:  250,800 GT Length:  365 meters Passenger Capacity:  7,600 (max)

At the top of the list is the  Icon of the Seas , the largest cruise ship in the world as of 2024. Launched by Royal Caribbean International, this ship is a true marvel of modern engineering. With a gross tonnage of 250,800 GT, Icon of the Seas is not just the largest ship but also one of the most innovative. It features 20 decks filled with cutting-edge amenities, including the AquaDome, an indoor water park, and Central Park, an open-air garden area. The ship’s design prioritizes passenger experience, offering everything from thrilling attractions to tranquil retreats, ensuring that every passenger has a memorable journey. The sheer scale and luxury of Icon of the Seas make it a standout in the world of cruising, embodying the future of travel on the high seas.

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Largest Cruise Ships

See here the world's largest cruise ships list (including vessels under construction ) owned by the best cruise line companies . This article is also integrated with our ship dimensions , passenger capacity , and old cruise ships surveys.

CruiseMapper's list of biggest cruise ships includes all vessels with gross tonnage/volume over 150,000 GT-tons .

Each one of these behemoth ships is an engineering marvel produced by our contemporary age of fun and super technologies. Kudos to their builders and double kudos to their proud owners who have invested so much in these newbuild projects!

Note: In the following table, all links are internal (CruiseMapper) and redirect to the liner's itinerary schedule where you can compare dates and prices per person (double occupancy cabin rates).

The world's largest river cruise ship is Victoria Sabrina . The 2020-launched riverboat is China-built, owned by Victoria Cruises China and deployed year-round on Yangtze River. The vessel has the impressive volume of 17000 GT-tons, LOA length 150 m (492 ft), width 22 m (72 ft), 7 decks (5 with cabins), 270 staterooms, max capacity 690 passengers plus 195 crew/staff.

Oasis-class - biggest cruise ship in the world ever built

World's currently largest cruise ship class is produced exclusively for RCI-Royal Caribbean andin 2 sub-series - Oasis-Class (Allure OTS, Oasis OTS) and Oasis-Plus (Harmony OTS, Symphony OTS, Wonder OTS). These are sisterships from the fleet of the second- largest cruise shipping company in the world - RCCL-Royal Caribbean Cruises Ltd (as shipowner) that follows only Carnival Corporation (as shipowner).

As to vessels' dimensions, each boasts the unimaginable weight of 227,000-230,000 GT / gross tons, LOA length 362 m (1187 ft) and waterline width 47 m (154 ft). The extreme breadth is over 60 m (198 ft). As the GT is a volume measurement, the ship's actual mass (called displacement) is approx 100,000 tons (the hull alone weighs about 54,000 tons). Surpassing all passenger ship standards, building cost and all previous ship travel vacation concepts, the Oasis-class ships are currently the only passenger shipping vessels of such immense size.

Other interesting numbers are the above waterline height (72 m / 236 ft), depth (23 m / 74 ft below waterline), 16 passenger decks, draft/draught (9,3 m / 31 ft), cruising/service speed 23 knots (26 mph / 42 kph), capacity 5400 passengers at double occupancy (max 6296 / 6870) and officers+crew capacity 2165.

The world's biggest cruise ship propulsion system guarantees the perfect maneuverability by 3 rotatable Azipod thrusters (suspended under the ship's stern), each with a huge electric motor and a 6 m (20 ft) propeller. The ship offers great stability due to its enormous size. And in times of need - there are 18 lifeboats, each with a capacity of 370 people.

Oasis-Plus class is also currently the world's most technologically advanced and energy-efficient cruise vessel ever built. It is equipped with a new-generation exhaust gas cleaning system (multi-stream scrubbers) and with a hull lubrication system allowing the ship to float on air bubbles (created around the hull) thus reducing drag and increasing fuel efficiency.

Regarding cruise accommodations , this class of vessels has some of the largest suites at sea - measuring 150 m2 (over 1600 ft2, balcony included). Another signature feature is the 7 "neighborhoods" (theme-park-like areas), 5 large swimming pools, a huge casino, a full-size volleyball/basketball court, large-capacity bars, and lounges. Oasis-Plus ships additionally have waterslides (created by Aquatic Design & Engineering) and a total of 23 "water fun" areas (swimming pools, large-size outdoor jacuzzies, waterslides, flowriders/surf simulators). The stern-located Ultimate Abyss water slide is 150 ft (45,70 m) above sea level. It features 31 sections, two 360-degree circles, 27-degree slide incline, 28 m (92 ft) serpentine-like drop, 13,14 seconds average sliding time (top to bottom), around 300 small LED lights and graffiti artworks throughout.

These phenomenal ships were manufactured by STX Europe (shipyard Turku Finland / Oasis-class) and in by STX France (shipyard Saint-Nazaire France / Oasis-Plus). The new Oasis ships are 2,15 m (7 ft) longer.

Biggest Carnival cruise ship - "Carnival Pinnacle" class

Watch this amazing YouTube video about the "Carnival Pinnacle cruise ship". The project was designed by the Italian shipbuilder Fincantieri as their biggest ever passenger ship - GT tonnage 200,000 tons, capacity 6000 passengers, length 380 m (1246 ft), The "Pinnacle Project" was initiated by Carnival Corporation in 2004 to tip the scales in the "Carnival vs Royal Caribbean" competition.

Carnival Pinnacle was never built as the project was officially canceled (mainly due to the vessel's incredible cost at that time). However, many of the project's elements and innovative design features were later adapted for other large-sized cruise liners built for rival companies.

Top 10 Largest Cruise Ships in the World [2024 EDITION]

In the past we’ve published a list of the largest ships in the world, these include oil tankers, and offshore vessels along with cruise ships. This page will be dedicated to ranking just the largest cruise ships.

Icon of the Seas

Icon class | 248,663gt | 1,196ft loa | 160ft beam.

ICON OF THE SEAS

The Icon of the Seas is about as much of a technological marvel and an incredible feat of marine engineering as it gets. The first of it’s kind for Royal Caribbean just started sailing in 2024 so she makes the top of the list with dimensions edging out her fleetmates below.

Wonder of the Seas

Oasis-plus class | 235,600gt | 1,187ft loa | 154ft beam.

WONDER OF THE SEAS

The now second largest cruise ship in the world is currently Royal Caribbeans Wonder of the Seas. This 5,700 passenger ship, at double occupancy, is the first in the next iteration of the Oasis-class of vessels soon to be joined by her sister Utopia of the Seas.

Symphony of the Seas

Oasis class | 228,081gt | 1,184ft loa.

SYMPHONY OF THE SEAS

The 2018 built vessel is the largest in the original run of Oasis-class vessels for cruise giant Royal Caribbean. While she’s identical to the Harmony of the Seas (#3 in our list) she’s only fractionally larger, based on tonnage, so she goes above Harmony of the Seas.

Harmony of the Seas

Oasis class | 226,963gt | 1,188ft loa.

HARMONY OF THE SEAS

Harmony of the Seas launched in 2016 from STX France and sails for Royal Caribbean. The ship is a slight enhancement of the Oasis-class of vessels. The original two listed below were built in Finland. When it came time to order the next pair of vessels, Royal Caribbean opted to go with a different yard. This allowed them to make some improvements to the two new vessels. This essentially let the Harmony and Symphony reside in their own class of ships.

Allure of the Seas

Oasis class | 226,838gt | 1,181ft loa.

ALLURE OF THE SEAS

Oasis of the seas, oasis class | 225,282gt | 1,181ft loa.

OASIS OF THE SEAS

Msc world europa, world class | 215,863gt | 1,093ft loa.

MSC WORLD EUROPA

The MSC World Europa is a cutting-edge cruise ship belonging to MSC Cruises. Launched in 2022, she has a capacity for up to 6,850 passengers and a crew of approximately 2,180, it features 19 passenger decks. The ship boasts state-of-the-art facilities, including diverse dining venues, entertainment options such as theaters and a multimedia lounge, and innovative attractions like the “MSC Starship Club” with its humanoid robotic bartender. Advanced navigation systems and sustainable features underline its commitment to modern maritime technology and eco-friendly operations.

Costa Toscana

Excel class | 186,364gt | 1,067ft loa.

COSTA TOSCANA

The Costa Toscana is a remarkable cruise ship operated by Costa Cruises. Debuted in 2021, it spans about 337 meters in length and has a gross tonnage of around 185,000. Designed to accommodate up to 5,224 passengers and with a crew capacity of approximately 1,646, the ship encompasses 20 passenger decks. Onboard, passengers can enjoy a range of amenities including diverse dining options, entertainment venues like theaters and a water park.

Excel Class | 185,581gt | 1,128ft LOA

The P&O ship Arvia was launched in 2022. With ample space for up to 5,200 passengers and a crew of about 1,700, the ship encompasses 17 decks, featuring an array of amenities such as diverse dining options, entertainment venues including theaters and a SkyDome, and innovative attractions like the Altitude Skywalk and Ocean Studios.

Costa Smeralda

Excel class | 185,010gt | 1,067ft loa.

COSTA SMERALDA

Costa Smeralda is operated by Costa Cruises. Launched in 2019, the ship welcomes up to 6,554 passengers and accompanied by a crew of about 1,646, the ship comprises 20 passenger decks. Onboard, passengers can enjoy a variety of amenities including diverse dining options, entertainment venues like theaters and a lavish spa, and unique attractions such as the Colosseo, an area dedicated to entertainment and events.

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The top 10 biggest cruise ships in the world

Cruise ships have evolved into giant vessels, even eclipsing aircraft carriers. So, what are the top 10 biggest cruise ships in the world?

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The Top 10 Biggest Cruise Ships in the World

Modern cruise ships continue to grow in size, with the biggest cruise ship, the Icon of the Seas , launching at the start of this year, and her sister ship the Star of the Seas expected to surpass her in size.

Both of these ships are operated by Royal Caribbean International, which operates five of the ten largest cruise ships in the world. Carnival Corporation, arguably the biggest cruise company in the world, features three times on the list through its subsidiaries P&O Cruises and Costa Cruises.

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All of the heaviest cruise ships in the world were built within the last 20 years, although the majority – six of the ten – were built within the last five years.

So, here are the top ten biggest cruise ships in the world, by gross tonnage. 

10. P&O Cruises MS Arvia : 185,581 gross tonnes

The MS Arvia is P&O Cruises’ fourth ship to be built by German shipyard Meyer Werft. Weighing in at 185,581 gross tonnes, the 345m (1,130-foot) Arvia is slightly larger than her sister ship, the MS Iona . The 20-deck ship is the largest ship commissioned for the British cruise market and has a maximum passenger capacity of 6,264 passengers, with 1,800 crew onboard. 

The ship is the second liquefied natural gas (LNG)-powered Excellence-class vessel for P&O, following the Iona . Arvia is powered by a 61,760kW LNG drive system, with a propulsion power of 37 megawatts. The LNG-powered propulsion system allows the vessel to sail at a maximum speed of 21.5 knots.

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After being floated out in August 2022, the Arvia mainly operates itineraries around the Caribbean or the Mediterranean.

9. Costa Cruises – Costa Smeralda : 185,010 gross tonnes

The Costa Smeralda is the first LNG-powered vessel in the Costa Cruises fleet. With a gross tonnage of 185,010gt, the 20-deck Excellence-class ship measures 337m (1,106 feet) in length. The second LNG-powered cruise ship to enter operation in the world, she has a maximum capacity of 6,554 passengers with 1,646 crew and a service speed of 21.5 knots.

Construction of the Costa Smeralda began at the Meyer shipyard in Turku, Finland, in September 2017. Meyer Turku collaborated with the Meyer Werft Papenburg shipyard to develop and integrate the LNG propulsion plant for the ship. She is fitted with four 16-cylinder, Caterpillar MaK 16VM46DF engines, with 15.4 megawatts (20,710 horsepower) output per engine, resulting in a maximum power of  37 megawatts (50,000 horsepower).

The ship, which was named after the Emerald Coast of Sardinia, entered service in December 2019 , departing Savona on its maiden voyage in the Mediterranean, where it has sailed since.

8. Costa Cruises – Costa Toscana : 186,364 gross tonnes

The Costa Toscana is the sister ship of the Costa Smeralda and is also powered by LNG . measuring 337m (1,106 feet) long and weighing in at 186,364 gross tonnes, the Toscana has a maximum capacity of 6,338 passengers and 1,678 staff across her 20 decks.

Like her sister ship, the Toscana was also built at the Meyer shipyard in Finland, with construction completed in 2021. She is also powered by four MaK-Caterpillar engines, with a total power of 57.2 megawatts (76,706 horsepower), and two ABB Azipod motors , resulting in a service speed of 17 knots.

Named in homage to the Tuscany region of Italy, Costa Toscana mainly sails around the Mediterranean Sea but Costa Cruises has also used the ship to sail itineraries further afield, such as around Brazil and the UAE.

7. MSC Cruises – MSC World Europa : 215,863 gross tonnes

The only entry in the top ten from MSC Cruises, MSC World Europa measures 333m (1,094 feet) in length. With 215,863 gross tonnage, she can house more people than any other ship in the MSC fleet: up to 6,762 passengers across 2,633 cabins spread over 22 decks, in addition to 2,138 crew.

Built by Chantiers de l’Atlantique in Saint-Nazaire, France, the World Europa ’s LNG-power propulsion system was subcontracted to Finland-based Wärtsilä. Five LNG-powered, 14-cylinder Wartsila 46DF dual-fuel engines power the vessel, with a propulsion power of 44 megawatts ( 59,005 horsepower). She also features nitrogen oxide reduction (NOR) units, two Wartsila LNGPac fuel storage and supply systems, seven thrusters, and two fixed-pitch propellers. 

The MSC World Europa was floated out at the end of 2021 and was initially used as an accommodation vessel for fans attending the 2022 FIFA World Cup, with the ship berthed at Doha Port in Qatar during the tournament. Following the competition, the ship subsequently travelled several routes around the UAE, before sailing to the Mediterranean, where it has sailed itineraries since.

6. Royal Caribbean International – Allure of the Seas : 225,282 gross tonnes

The first of many entries on this list operated by Royal Caribbean, Allure of the Seas weighs in at 225,282 gross tonnes. Measuring 362m (1,187 feet), she is only 50mm (2 inches) longer than her sister ship the Oasis of the Seas . The Allure has a maximum capacity of 6,780 passengers and 2,200 crew across 18 decks.

Built at the Turku Shipyard in Finland, the Allure took two years to build , floating out in 2010. She features six Wärtsilä 46 diesel engines with a total power output of 97 megawatts (130,053 horsepower). It is propelled by three electric Azipod azimuth thrusters. The ship can travel at a cruising speed of 22 knots.

With a homeport of Galveston, Texas in the US, the Allure mainly serves itineraries around the Bahamas but she is scheduled to sail routes around the Mediterranean in 2025.

5. Royal Caribbean International – Oasis of the Seas : 226,838 gross tonnes

The oldest ship on this list, the Oasis of the Seas has been in service for over a decade. She was the biggest cruise ship at the time when floated out in 2009, with a gross tonnage of 226,838gt and a length of 360m (1,181 feet). The Oasis has a maximum capacity of 6,699 passengers and 2,181 staff across 18 decks.

The Oasis took two years to build at the Meyer shipyard in Turku, Finland, with the keel laid on 12 November 2007 and the ship arriving at her homeport of Port Everglades in Florida, US, on 13 November 2009.

The Oasis is powered by eight Wärtsilä V12 diesel engines, which generate 5.6 megawatts (7,500 horsepower) each, alongside four bow thrusters. The main propulsion system consists of three 20-megawatt (26,820 horsepower) electric Azipod motors, resulting in a combined propulsion power of 82 megawatts (109,964 horsepower) and a standard cruising speed of 23 knots.

The Oasis mainly operates routes around the Caribbean, but occasionally repositions to offer itineraries in the Mediterranean.

4. Royal Caribbean International – Harmony of the Seas : 226,963 gross tonnes

The third Oasis-class ship built by Royal Caribbean, Harmony of the Seas weighed in bigger than her existing sister ships at launch in 2016, with 226,963 gross tonnage, but she has since been surpassed by newer vessels. With a total length of 362m (1,188 feet), Harmony has a maximum capacity of 6,780 passengers and 2,300 staff across 18 decks.

Royal Caribbean placed an order with STX France for the construction of Harmony of the Seas in December 2012. The first steel for the ship was cut at STX France’s Saint-Nazaire shipyard in September 2013, while the keel-laying ceremony was held in May 2014.

The Harmony is powered by three 18.9-megawatt Wärtsilä 16V46 16-cylinder main generator diesel engines and three Wärtsilä 12V46 12-cylinder engines producing 13.9 megawatts each. The propulsion power is provided by three electric Azipod azimuth thrusters and manoeuvring is assisted by four 5.5-megawatt Wärtsilä CT 3500 tunnel thrusters. The propulsion system results in 82 megawatts (109,964 horsepower) and enables the ship to sail at a standard speed of 23 knots.

Harmony of the Seas embarked on her inaugural seven-night Western Mediterranean cruise from Barcelona, Spain, in June 2016, and currently operates itineraries around the Western Caribbean from her homeport of Galveston, Texas in the US.

3. Royal Caribbean International – Symphony of the Seas : 228,081 gross tonnes

At launch in 2018, the Symphony of the Seas surpassed the Harmony as the biggest cruise ship, weighing in at 228,081 gross tonnes. Measuring 361m (1,185 feet), the Symphony has a maximum capacity of 6,680 passengers and 2,200 staff across 18 decks and was the testing ground for Royal Caribbean’s new muster drill . With a total length of 361m (1,185 feet), She is roughly 30 metres (98 feet) longer than the largest military ships , the US Nimitz-class aircraft carriers and the USS Gerald R. Ford .

The keel-laying ceremony for the Symphony of the Seas was held in October 2015 at STX’s Saint-Nazaire shipyard in France, and the ship sailed out in June 2017. She is powered by six diesel sets, each composed of three Wärtsilä 16V46D engines and three Wärtsilä 12V46D engines, as well as three 20-megawatt electric Azipod main engines – resulting in 82 megawatts (109,964 horsepower) of propulsion power and a standard cruising speed of 22 knots.

The Symphony commenced her seven-day maiden voyage from Barcelona in April 2018, and since then has mainly operated itineraries around the Caribbean from her homeports of Miami, New York, and Fort Lauderdale.

2. Royal Caribbean International – Wonder of the Seas : 235,600 gross tonnes

Royal Caribbean’s flagship, Wonder of the Seas is the fifth Oasis-class cruise ship built for the cruise company. Weighing in at 235,600 gross tonnes, the Wonder was the largest ship in the world when she was completed in January 2022. Measuring 362m (1,187 feet) in length, the 18-deck Wonder has a maximum capacity of 7,084 guests across its 2,867 staterooms, as well as housing 2,369 crew.

Built by Chantiers de l’Atlantique in Saint-Nazaire, Wonder is powered by two Wärtsilä 16V46D engines and four Wärtsilä 12V46D engines; and uses three 20-megawatt electric Azipod engines for propulsion, combining for a propulsion power of 82 megawatts (109,964 horsepower and a standard cruising speed of 22 knots.

The Wonder sailed her maiden voyage in March 2022 from Fort Lauderdale, Florida, and has since served itineraries around the Caribbean from her homeports of Miami and Cape Canaveral.

1. Royal Caribbean International – Icon of the Seas : 248,663 gross tonnes

Weighing 248,663 gross tonnes and measuring 365 metres (1,1967 feet), the Icon of the Seas is the largest cruise ship in the world. Christened on 23 January 2024, the Icon has a maximum capacity of 7,600 passengers and 2,350 crew across 20 decks. She is the lead ship of the new Icon-class, with a sister ship the Star of the Seas due to be delivered in 2025 and another ship planned for delivery in 2026.

Built by Meyer Turku in Finland, the Icon is the first ship in the Royal Caribbean fleet that can be powered by LNG. It uses three Wärtsilä 14V46DF and three Wärtsilä 12V46DF for its main generator engines, which provide 67.5 megawatts of energy to run the ship. She is propelled by three 20-megawatt Azipod thrusters as well as five 4.8-megawatt Wärtsilä WTT-45 CP bow thrusters, with a cruising speed of 22 knots.

After sailing her maiden voyage on 27 January 2024, the Icon now sails year-round itineraries of seven-night trips around the Eastern and Western Caribbean from her homeport of Miami, Florida.

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The World’s 10 Biggest Cruise Ships

• February 7, 2021

Cruise ships, over the last few decades, haven’t just grown in number, but also in size. Today’s biggest ships are nearly three times bigger than the 1988-built Sovereign of the Seas, considered the world’s first mega cruise ship.

1. Symphony of the Seas (Royal Caribbean International)

Tonnage: 227,625 tons Capacity: 5,400 passengers Built: 2018 Length: 362.1 meters Beam: 47.4 meters Sailing regions in 2021: Caribbean

2. Harmony of the Seas (Royal Caribbean International)

Tonnage: 227,625 tons Capacity: 5,400 passengers Built: 2016 Length: 362.1 meters Beam: 47.4 meters Sailing regions in 2021: Caribbean and Mediterranean

3. Allure of the Seas (Royal Caribbean International)

Tonnage: 220,000 tons Capacity: 5,400 passengers Built: 2010 Length: 362 meters Beam: 47 meters Sailing regions in 2021: Caribbean

4. Oasis of the Seas (Royal Caribbean International)

Tonnage: 220,000 tons Capacity: 5,400 passengers Built: 2008 Length: 361.6 meters Beam: 47 meters Sailing regions in 2021: Caribbean, Bahamas, and East Coast

5. Mardi Gras (Carnival Cruise Line)

Tonnage: 183,900 Capacity: 5,200 passengers Built: 2021 Length: 337 meters Beam: 42 meters

6. Iona (P&O Cruises)

Tonnage: 183,900 tons Capacity: 5,200 passengers Built: 2020 Length: 337 meters Beam: 42 meters Sailing regions in 2021: Northern Europe and the Canaries

7. AIDAnova (AIDA Cruises)

Tonnage: 183,900 tons Capacity: 5,000 passengers Built: 2018 Length: 337 meters Beam: 42 meters Sailing regions in 2021: Mediterranean and the Canaries

8. Costa Smeralda (Costa Cruises)

Tonnage: 182,700 tons Capacity: 5,224 passengers Built: 2019 Length: 337 meters Beam: 42 meters Sailing regions in 2021: Mediterranean

9. MSC Grandiosa (MSC Cruises)

Tonnage: 177,100 tons Capacity: 4,888 passengers Built: 2019 Length: 331 meters Beam: 43 meters Sailing regions in 2021: Mediterranean

10. Spectrum of the Seas (Royal Caribbean International)

Tonnage: 168,666 tons Capacity: 4,100 passengers Built: 2019 Length: 347 meters Beam: 41.4 meters Sailing regions in 2021: China and Southeast Asia

Coming Soon…

The ranking is slated for major changes in the next few years, with large cruise ships entering service for several brands.

1. Wonder of the Seas (Royal Caribbean International)

Tonnage: 227,625 tons Capacity: 5,448 passengers Built: 2022 Length: 362.1 meters Beam: 47.4 meters

2. Global Dream (Genting Cruise Lines/Dream Cruises)

Tonnage: 208,000 tons Capacity: 5,000 passengers Built: 2022 Length: 342 meters Beam: 46.4 meters

3. MSC World Europa (MSC Cruises)

Tonnage: 205,700 tons Capacity: 5,400 passengers Built: 2022 Length: 330 meters Beam: 47 meters

4. Icon Class I (Royal Caribbean International)

Tonnage: 200,000 Capacity: 5,000 passengers Built: 2022 Length: TBD Beam: TBD

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What is the largest cruise ship in the world?

Does size really matter? The cruise industry thinks so. For more than a century, cruise lines have competed to claim the title of world's largest cruise ship.

When it set sail in 1912, ill-fated Titanic was the largest and grandest passenger vessel of its time. But since 2009, when Royal Caribbean debuted its first Oasis Class ship , those superlatives have applied to vessels more than five times Titanic's size.

Today, the largest cruise ships are floating cities, offering a plethora of bars and restaurants, expansive spas and sun deck retreats. They feature scores of recreation opportunities, including zip lines, surf simulators , rock climbing walls, ice-skating rinks, escape rooms, laser tag, top-deck go-karts , virtual reality gaming and even roller coasters .

So, what is the largest cruise ship in the world, and how do other cruise ships compare? Here's a quick rundown of the world's biggest cruise ships by both gross registered tons and maximum passenger capacity. Unsurprisingly, Royal Caribbean's Icon Class and Oasis Class dominate the top five in both categories, with only two other lines joining Royal Caribbean.

Note: This article excludes ships from lines like Costa Cruises, P&O Cruises and Aida, which do not cater to the North American market.

What is the world's largest cruise ship?

Currently, it's Royal Caribbean's Icon of the Seas. At 250,800 gross registered tons and carrying up to 7,600 passengers (plus 2,350 crew members), the ship is a true behemoth. It includes neighborhoods that feature everything from waterslides, an indoor AquaTheater, a carousel and an adults-only sun deck to lavish suites, retail shops, thousands of live plants and more than two dozen bars and restaurants.

World's biggest cruise ships by tonnage

• Icon of the Seas : 250,800 gross registered tons
• Utopia of the Seas : 236,473 gross registered tons
• Wonder of the Seas : 235,600 gross registered tons
• Symphony of the Seas : 228,081 gross registered tons
• Harmony of the Seas: 226,963 gross registered tons
• Oasis of the Seas: 226,838 gross registered tons
• Allure of the Seas : 225,282 gross registered tons
• MSC World Europa: 205,700 gross registered tons
• Carnival Celebration : 183,521 gross registered tons
• Carnival Jubilee : 183,521 gross registered tons
• MSC Grandiosa: 181,541 gross registered tons
• MSC Virtuosa: 181,541 gross registered tons

World's biggest cruise ships by passenger capacity

• Icon of the Seas: 7,600 passengers
• Utopia of the Seas: 6,988 passengers (estimated)
• Wonder of the Seas: 6,988 passengers
• Allure of the Seas: 6,780 passengers
• Oasis of the Seas: 6,771 passengers
• MSC World Europa: 6,762 passengers
• Harmony of the Seas: 6,687 passengers
• Symphony of the Seas: 6,680 passengers
• Carnival's Mardi Gras: 6,631 passengers
• Carnival Celebration: 6,631 passengers
• Carnival Jubilee: 6,631 passengers
• MSC Grandiosa: 6,334 passengers
• MSC Virtuosa: 6,334 passengers

What is the biggest cruise ship in the world today (2024)?

Currently, the largest cruise ship in the world by both tonnage and passenger capacity is Royal Caribbean's Icon of the Seas. It takes the title from fleetmate Wonder of the Seas. Several other Royal Caribbean vessels — including Freedom Class and Oasis Class namesakes Freedom of the Seas and Oasis of the Seas — were also the largest at one time.

What is the world's biggest cruise ship price?

Royal Caribbean paid about $2 billion to build Icon of the Seas. At press time, the least expensive cabins on Icon of the Seas started at $1,252 per person, including taxes and fees, for a seven-night voyage ($179 per person, per night). If that's out of your price range, check out my recommendations for ships to try instead of Icon of the Seas .

What cruise ship is 5 times bigger than Titanic?

All of the ships in Royal Caribbean's Oasis Class and Icon Class are at least five times larger than Titanic was, in terms of size. As far as passenger numbers, Titanic had capacity for 2,453 people, while Icon of the Seas can hold 7,600, meaning the latter holds more than three times the number of passengers Titanic was able to.

What is the largest cruise ship capacity?

Icon of the Seas can hold up to 7,600 guests at maximum capacity or 5,610 guests on a double occupancy basis (two people per cabin). The ship also employs more than 2,300 crew members. That means the ship can carry nearly 10,000 people when it's fully crewed and every passenger bed is occupied.

Got more cruise questions? TPG has answers:

• Man overboard: Why do people fall off cruise ships?
• What is baked Alaska, and why is it paraded around cruise ships?
• What is a gentleman host on a cruise?
• What is the Jones Act and how does it affect cruise ships?
• What's a cruise cabin guarantee and will it save you money?
• What's the difference between a cruise concierge and a butler?

The 20 Biggest Cruise Ships in the World in 2023

By: Author Carrie Ann Karstunen

Posted on Published: March 1, 2022  - Last updated: January 6, 2023

Cruise ships have been getting bigger—and adding lots of attractions that were unheard of just a few years ago. To help you pick which megaship is right for you, I’ve rounded up the 20 biggest cruise ships in the world in 2023.

Along with a ranking of the top 20 cruise ships by size , I’ve included important stats and unique features for each ship. If you’re considering sailing on one of the biggest cruise ships in the world, you’ll want to read this guide before you choose!

How do we determine the size of cruise ships for comparison?

Cruise ships can be measured by a variety of factors. You might assume that a ship’s size is determined by its length, weight, or even its passenger capacity.

But the size of a cruise ship is generally determined by gross tonnage —and (confusingly) that’s not a measurement of weight!

Gross tonnage, or GT, is a measure of the ship’s internal volume . To calculate GT, first a ship’s volume is calculated by measuring from keel to funnel to the outside of the hull framing. That number (in cubic meters) is then run through several mathematical formulas to determine GT. (I won’t go into all of that here, but if you’re interested the US Coast Guard has a simplified guide to measuring gross tonnage ).

The world’s 20 largest cruise ships in 2023

Currently, the top 20 biggest cruise ships have four sets of ties in the rankings, all between sister ships that share the same cruise line and class. So although we’ll start our list at #16, there are twenty ships in total!

Cruise fans will notice there are several new ships on the list this year. Have any of these newer ships bumped your favorites down in the rankings? Read on to find out!

16. (tie) MSC Seascape

• Cruise line: MSC
• Year built: 2022
• Gross tonnage: 170,412
• Length: 1112 ft / 339 m
• Max. beam: 135 ft / 41 m
• Staterooms: 2270
• Max. passengers: 5877
• Passenger decks: 15

Just making this year’s list of the world’s 20 largest cruise ships, MSC Seascape is tied for #16. The second Seaside EVO class ship launched by MSC Cruises in just over a year, Seascape features a glam New York City vibe.

The ship’s four-story Atrium is at the heart of the action on board, and boasts a sparkling staircase set with 10,000 Swarovski crystals—the perfect spot for a photo op on formal nights !

But MSC Seascape isn’t all glitz and glamour—the family-friendly ship offers 13 pools and water features and more than 140,000 square feet (13006 m²) of public outside space. Kids will love Pirates Cove Aquapark , a play space with slides, a rope bridge, and plenty of water sprayers and dumping buckets to beat the heat.

Seascape is also the first ship to feature the new thrill ride Robotron , a robotic virtual rollercoaster ride perched on the top deck.

Foodie guests on MSC Seascape will enjoy the ship’s eleven restaurants, including a massive Market Place Buffet and several specialty dining venues grouped together at Chef’s Court .

Related: MSC Cruises Launches MSC Seascape in New York City

16. (tie) MSC Seashore

• Year built: 2020 (launched 2021)
• Max. beam: 134.5 ft / 41 m

Almost identical to her sister ship Seascape , MSC Seashore is tied for #16 on the list of the largest cruise ships. The first in the EVO subclass of MSC’s Seaside class ships, Seashore and her sister are larger than other ships in their class and offer expanded outdoor spaces.

As an EVO ship, MSC Seashore offers improved technology to increase efficiency and reduce her carbon footprint. The energy-efficient equipment includes an advanced wastewater purification system and Safe Air , a new sanitation system that eliminates viruses and bacteria.

Seashore was purpose-built for the American market, but still offers the European flair that MSC is famous for. Guests can enjoy a taste of Italy at the ship’s Venchi 1878 gelato bars , offering twenty flavors of the decadent frozen treat in flavors like tiramisù and stracciatella.

MSC Seashore also features a gorgeous aft infinity pool—one of the largest at sea—with luxurious submerged sunbeds. The spot is a tranquil adults-only oasis by day, but it comes alive in the evening as the setting for the always-popular Silent Disco .

15. (tie) MSC Bellissima

• Year built: 2019
• Gross tonnage: 171,598
• Length: 1,036.2 ft / 315.83 m
• Max. beam: 141 ft / 43 m
• Staterooms: 2,217
• Max. passengers: 5,686
• Passenger decks: 14

Tied for the fifteenth spot in the list of the world’s largest cruise ships, MSC’s Bellissima is as tall as thirteen double-decker buses!

Perfect for a family cruise, Bellissima offers a wealth of kids’ activities for children aged one through seventeen. Parents can track kids’ whereabouts on board via an RFID bracelet synced with MSC’s app. For adults who want to enjoy a leisurely meal, there’s the Happy Dinner program where the little ones are escorted to the kids club as soon as they finish eating!

MSC Bellissima is home to a thrilling Grand Canyon-themed waterpark with three waterslides—two racing tubes as well as a champagne bowl-style slide. The younger set will love the Aquaplay spray area, and guests of all ages can climb the Himalayan bridge, a rope course that crosses the ship high above the water.

Guests aboard Bellissima also have access to an electronic cruise assistant, similar to Siri or Alexa. A first in the cruise industry, Zoe —who speaks seven languages and adapts to each passenger’s preference—provides information and help booking shows, spa treatments, and shore excursions, as well as notifications of events and promotions.

15. (tie) MSC Meraviglia

• Year built: 2017
• Staterooms: 2,244
• Max. passengers: 5,655

When MSC’s Meraviglia entered service in 2017, she was the sixth-largest cruise ship in the world—but has since fallen to #15, tied with her newer sister ship Bellissima .

The namesake of the Meraviglia class of cruise ships, she was the first to offer an expanded dining experience with fourteen restaurants, including a whopping four complimentary main dining rooms. Celebrity chef Carlo Cracco was enlisted to improve the quality of the ship’s cuisine.

On Meraviglia entertainment options abound—the Broadway Theatre hosts six unique shows each cruise, along with the Carousel Lounge where you can experience Cirque du Soleil at sea. The crew also puts on an impressive amount of activities and events, so there’s always something to do on a sea day .

The ship’s Amusement Park has a full-size bowling alley, 4-D cinema, F1 simulators, an arcade, as well as a sportplex that becomes a disco spot for young cruisers in the evening.

14. (tie) MSC Virtuosa

• Year built: 2020
• Gross tonnage: 181,541
• Length: 1,087.4 ft / 331.43 m
• Max. beam: 160 ft / 50 m
• Staterooms: 2,421
• Max. passengers: 6,334

MSC’s ship Virtuosa , built in 2020, is one of the newer offerings by the Swiss-Italian cruise line and is tied for number fourteen on our list of the world’s biggest cruise ships.

Virtuosa offers five pools in total, plus a water park with three waterslides, so water babies of all ages can spread out and enjoy the fun. The pools can accommodate over a thousand guests at a time!

If relaxing with a cocktail is more your style, stop by and see Rob the bartender at Starship Club . He’s the first humanoid bartender at sea, and speaks six languages!

Cruisers can also wander the Galleria Virtuosa —the pretty indoor promenade with restaurants and shops features an arched ceiling with the longest LED dome at sea , presenting an ever-changing light display.

14. (tie) MSC Grandiosa

• Staterooms: 2,632
• Max. passengers: 6,761

Tied for number 14, Grandiosa was the first vessel in MSC’s Meraviglia-Plus class , later joined by her sister ship MSC Virtuosa .

With 200 more staterooms than previous MSC ships, Grandiosa has expanded the number of accessible cabins on board, and added groups of up to three connecting staterooms as well as new family balcony cabins. Some spacious family staterooms can sleep up to twelve!

Grandiosa also has some innovative environmental features, including systems to reduce nitrogen oxide emissions by 80%, and sulfur emissions by 97%. She has a fuel-efficient hull and can run on shore power when docked.

Fun fact: Grandiosa ‘s godmother is Italian screen legend and longtime MSC ambassador Sophia Loren. She actually holds that honor for most of MSC’s fleet!

13. Mardi Gras

• Cruise line: Carnival
• Gross tonnage: 181,808
• Length: 1,130 ft / 344 m
• Max. beam: 138 ft / 42 m
• Staterooms: 2,641
• Max. passengers: 6,630

The 13th biggest cruise ship in the world is Carnival Cruise Line’s widely-anticipated Mardi Gras (currently the cruise line’s second-largest ship) which took her maiden voyage in July 2021.

Mardi Gras debuted several new concepts for Carnival, including three new dining venues. Big Chicken by Shaq serves up fried chicken and more, while quick-service Street Eats offers three food stations, each specializing in a different type of cuisine.

Emeril’s Bistro 1396 , created in partnership with celebrity chef Emeril Lagasse (Carnival’s new Chief Culinary Officer ), serves up New Orleans-style Creole dishes.

The Grand Central Atrium reinvented the central area of the ship, with a larger space featuring bars, cafés, and shops with aerial performances overhead.

She also boasts the first rollercoaster at sea —BOLT is an open-air coaster with spectacular sea views. Riders can control their speed using pedals inside each two-person motorcycle-themed car.

12. AIDAcosma

• Cruise line: AIDA
• Year built: 2021
• Gross tonnage: 183,200
• Length: 1,106 ft / 337 m
• Staterooms: 2,626
• Max. passengers: 6,600
• Passenger decks: 16

Setting sail on her maiden voyage in February 2022, Carnival Corporation’s German brand AIDA ‘s newest ship AIDAcosma makes #12 on the list.

AIDAcosma ‘s unique features include the Ocean Deck , a four-story relaxation oasis with an infinity pool and panoramic ocean views.

The ship also has a reinvented Fun Park , complete with a ropes course, rock-climbing wall, and a large indoor playground.

Her seventeen restaurants and 23 bars and cafés ensure that guests have plenty of variety on their cruise vacation! Notable is the new Mamma Mia specialty restaurant, serving fresh Italian cuisine including homemade pasta dishes.

11. Carnival Celebration

• Gross tonnage: 183,521
• Length: 1130 ft / 340 m
• Max. beam: 137 ft / 42 m
• Staterooms: 2687
• Max. passengers: 6631

Carnival Cruise Line’s newest ship Carnival Celebration launched in 2022 as the second member of the Excel class , joining her sister Mardi Gras . The new ship almost made the top 10 of the largest cruise ships, landing at number 11.

Celebration pays homage to her homeport of Miami with the 820 Biscayne zone, named after the cruise line’s first headquarters. The zone will feature the Deco Deli and 820 Bar , serving up Cuban sandwiches and tropical drinks.

Pizza fanatics will want to try the brand new Miami Slice , a free pizzeria that replaces the Pizza Pirate or Pizzeria del Capitano venues found on all other Carnival ships. The walk-up pizza joint features vibrant décor reminiscent of late-night eateries on Miami Beach’s Ocean Drive. 

Younger guests can check out Space Cruisers , a new program offered in partnership with the Kennedy Space Center. Kids age 2 to 11 will have the opportunity to try NASA-inspired activities tailored to their age group.

Celebration is the second ship in Carnival’s fleet to be completely powered by liquefied natural gas (LNG).

Related: Cassidy Gifford Becomes Godmother of Carnival Celebration in Miami

10. AIDAnova

• Year built: 2018
• Gross tonnage: 183,858
• Max. passengers: 6,654

In tenth place is AIDAnova , sister ship to AIDAcosma . The first of AIDA’s ships to use liquefied natural gas (LNG), AIDAnova has nearly zero emissions.

Wellness-minded cruisers will love AIDAnova ‘s 3545 square meters dedicated to fitness and relaxation. The new Body & Soul Spa features five ocean-view saunas, a sun terrace with three jacuzzis, and a tepidarium. Over 30 free exercise classes are offered each week in the Sport area, or train solo in the open-air gym.

Or take a leisurely stroll on the Lanai deck, where guests can walk almost all the way around the ship, stopping at restaurants and bars including the Lanai Bar at the stern.

• Cruise line: P&O
• Gross tonnage: 184,089
• Length: 1,130 ft / 344.5 m
• Staterooms: 2,614

Number nine is P&O UK’s Iona , the largest cruise ship built specifically for the British market. One of the newer ships on the list, Iona was delivered in 2020 but made her first voyage in August 2021.

Family-friendly Iona features the enclosed SkyDome pool area, kids’ splash zone, and a shallow pool for little cruisers. Hosted by specially-trained Reef Rangers, the Reef kids’ club is a fun environment for children aged 2-17, open from early morning until late.

But Iona ‘s not all about the kids! She’s actually home to the world’s first gin distillery at sea , producing the Marabelle label. Inspired by the Scottish island of Iona, the gin contains 18 botanicals. Guests can attend two unique gin masterclasses on board, including one that allows you to craft your own gin with expert guidance.

8. (tie) Costa Toscana

• Cruise line: Costa
• Gross tonnage: 185,010
• Staterooms: 2,612
• Max. passengers: 6,554

Italian line Costa Cruises’ newest ship, Costa Toscana , comes in at the eighth-largest cruise ship in the world. The Tuscan-inspired vessel features furnishings, fabrics, and accessories all made in Italy. Even the driftwood used to craft dining tables at Archipelago restaurant was harvested from the Italian shoreline by Guardians of the Coast .

Food is a major focus of the ship, with many of her 21 restaurants offering authentic local cuisine by chefs including Bruno Barbieri, Hélène Darroze, and Ángel León. Even the littlest cruisers have a special place to eat— Squok Restaurant is dedicated to families with kids.

If all the amazing food on board inspires you, be sure to check out Toscana ‘s Food LAB , where guests can learn to prepare their own culinary creations alongside the ship’s chefs.

8. (tie) Costa Smeralda

Tied for eighth place is Costa Smeralda , a favorite of sustainability-minded cruisers. Smeralda was the first in Costa’s fleet powered by liquefied natural gas (sister ship Toscana now also shares this feature), a fuel source that reduces the ship’s environmental impact.

Other eco-friendly features include LED lighting throughout the ship, an onboard desalinization plant that sustainably harvests onboard water directly from the sea, and systems that recover the engines’ heat to reduce energy use.

Costa Smeralda earned the coveted Green Plus notation from RINA, only awarded to the most environmentally friendly cruise ships.

• Cruise line: P&O Cruises
• Gross tonnage: 185,581
• Length: 1130 ft / 344.5 m
• Staterooms: 2614
• Max. passengers: 6685

P&O UK ‘s newest ship Arvia is also the cruise line’s largest, and debuts at #7 on the 2023 list of biggest cruise ships. An Excel-class ship like Iona , Arvia is similar but boasts some key differences.

Like her sister, this ship also features a Sky Dome over the pool area—but Arvia ‘s is retractable to allow for alfresco swimming, dining, and entertainment when the weather is right.

Arvia is home to the fleet’s first swim-up bar , complete with plenty of in-water seating, allowing guests to order and enjoy a cocktail right in the pool.

The new ship debuted several new restaurant concepts, including Green & Co featuring Mizuhana , featuring fish and plant-based cuisine. Also new are Roast at The Quays for traditional British lunches and the 6th Street Diner , an American-style diner serving breakfast,brunch, and dinner.

Arvia also has the first rum distillery at sea ! The Tidal Rum has partnered with P&O to produce the unique rum blend on the ship at Anderson’s Bar .

6. MSC World Europa

• Gross tonnage: 215,863
• Length: 1094 ft / 333.3 m
• Max. beam: 154 ft / 47 m
• Staterooms: 2626
• Max. passengers: 6762

With the debut of MSC World Europa in December of 2022, MSC Cruises now has a whopping seven ships on the list of the top 20 biggest cruise ships in the world—the most of any cruise line!

The Geneva-based company has been working diligently to expand the fleet and MSC’s newest cruise ship is a whopper of a vessel.

The ship is an astounding 21 decks high (there’s a deck 22, but cruise superstition skips deck 13), four decks taller than the largest cruise ship in 2023. Sixteen of those decks are passenger-accessible.

Much like the megaships offered by Royal Caribbean, MSC World Europa is divided into several districts that contain similar offerings—a must-have on any gargantuan cruise ship. Guests can visit the adults-only Zen district for a bit of calm, or the Family district with ten kids’ facilities offering fun for little cruisers and their grownups.

Ranking among the top ships with the most water features at sea, World Europa offers six pools and 14 hot tubs , along with an aquapark featuring multiple waterslides.

MSC World Europa is also the line’s first LNG-powered cruise ship —and the biggest liquefied natural gas powered cruise ship in the world! This cleaner alternative to traditional marine fuel significantly reduces carbon, sulfur, and nitrogen oxide emissions.

5. Allure of the Seas

• Cruise line: Royal Caribbean
• Year built: 2010
• Gross tonnage: 225,282
• Length: 1,180 ft / 360 m
• Max. beam: 198 ft / 60.5 m
• Staterooms: 2,742
• Max. passengers: 6,780

Royal Caribbean’s Allure of the Seas ranks as the fifth largest cruise ship in 2022. She’s the second (and smallest) of the Oasis-class ships.

Allure of the Seas features seven themed “neighborhoods”—the Royal Promenade, Central Park, Entertainment Place, Boardwalk, Pool and Sports Zone, Vitality at Sea, and the Youth Zone.

With a ten-deck-high zip line and the interactive H2O Zone waterpark, Allure of the Seas is a favorite ship for adventurous cruisers of all ages.

4. Oasis of the Seas

• Year built: 2009
• Gross tonnage: 226,838

Number four is Oasis of the Seas , the first of the namesake Oasis class, and the oldest ship to make the top 15 list. Built in 2009, she was then the largest cruise ship in the world, and the first to have a maximum capacity of over 6000 passengers!

Oasis of the Seas may be an older ship, but she doesn’t look like one! In 2019 she had a $165 million transformation that brought the ship up to date.

Entertainment abounds on this ship, from the splashy Aqua80 show in the AquaTheater to Music Hall , a live music venue with plenty of floor space for dancing. Or try one of the four onboard water slides including the ten-story-high Ultimate Abyss .

3. Harmony of the Seas

• Year built: 2016
• Gross tonnage: 226,963
• Length: 1,188.1 ft / 362.12 m
• Max. beam: 215.5 ft / 65.7 m
• Staterooms: 2,747
• Max. passengers: 6,687

Coming in at number three is Royal Caribbean’s Harmony of the Seas , built in 2016 at a cost of 1.3 billion dollars.

With her three pool decks containing an impressive collection of pools and hot tubs, you’ll never feel crowded taking a dip. You can even learn how to SCUBA dive , right on the ship! Aboard Harmony of the Seas , guests have the opportunity to take the PADI® Open Water Diver Course, culminating with open water dives at various ports of call.

After you’ve worked up an appetite in the pool, try one of Harmony of the Seas ‘ twenty restaurants, serving over 200 different dishes on a daily basis.

2. Symphony of the Seas

• Gross tonnage: 228,081
• Length: 1,184.42 ft / 361.011 m
• Staterooms: 2,759
• Max. passengers: 6,680

The largest cruise ship in the world until 2022, Symphony of the Seas comes in second—but is still a behemoth at 1184 feet and 228,081 gross tons!

Built in 2018, Symphony of the Seas boasts some fun tech! Check out the Big Wonder , a seven-ton canopy lit with color-changing LEDs that cast a glow over the ship’s Solarium at night.

Enjoy a cocktail at Bionic Bar , where one of two robot bartenders can shake you up the perfect martini. But don’t worry, the ship’s 13 other bars and lounges are staffed by friendly humans.

Or play a lively game of glow-in-the-dark laser tag to battle for control of Planet Z —when the ship’s ice rink is temporarily transformed into an alien world, of course.

1. Wonder of the Seas

• Gross tonnage: 236,857
• Length: 1,187.8 ft / 362.04 m
• Max. beam: 210 ft / 64 m
• Staterooms: 2,859
• Max. passengers: 6,988

Wonder of the Seas from Royal Caribbean International is the cruise line’s newest—and the world’s biggest cruise ship, at almost 1188 feet long and 236,857 gross tons!

Delivered in February 2022, Wonder of the Seas made her maiden voyage from Fort Lauderdale on March 4, 2022.

Like the other Oasis-class ships, she’s organized into neighborhoods, but with the addition of an eighth unique section. This new neighborhood is dedicated to suite guests, with a plunge pool and bar as well as the suites-only Coastal Kitchen and Suites Lounge .

Wonder of the Seas offers some exciting new features—in addition to boasting the largest poolside movie screen of any RCCL ship there’s also The Vue , a cantilevered bar offering panoramic ocean views.

For the kids, there’s the new Wonder Playscape —an underwater-themed play area with climbing walls and an interactive puzzle mural.

Comparing the 20 biggest cruise ships in the world

Largest cruise ships faq.

How is the size of a cruise ship measured?

Ships are measured by gross tonnage, which is a measure of internal volume.

What does maximum beam mean on a ship?

Maximum beam is the measurement at the widest part of a ship’s hull.

Which cruise ship is the biggest?

Royal Caribbean’s  Wonder of the Seas  is the world’s largest cruise ship, with a gross tonnage of 236,857.

Which cruise ship is the longest?

Royal Caribbean’s  Wonder of the Seas  is the world’s longest cruise ship at 1,187.8 ft (362.04 m).

Which cruise ship can hold the most passengers?

Royal Caribbean’s  Wonder of the Seas  can hold the most passengers, with a maximum occupancy of 6,988.

Which cruise ship has the most staterooms?

Royal Caribbean’s  Wonder of the Seas  has the most passenger staterooms, at 2,859.

Have you sailed on one of the largest cruise ships in the world? Or do you prefer cruising on a smaller ship? I’d love to hear in the comments below!

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The world’s biggest cruise ships, as newcomer takes top spot

Record breaking vessel sets sail on its first voyage this afternoon, article bookmarked.

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As the newly crowned world’s largest cruise ship, Wonder of the Seas, prepares to take its first voyage on Friday afternoon, the league table of mega-ships has once again shifted.

But you may be surprised to know that the whole top five - in terms of size and weight - is now dominated by the same operator, Royal Caribbean .

The 18-deck Wonder of the Seas departs Florida’s Fort Lauderdale this afternoon for its inaugural sailing, travelling to Labadee, Haiti, San Juan, Puerto Rico, Nassau, Bahamas and Perfect Day at CocoCay - a private island in the Bahamas - over a seven-day itinerary.

It is followed in the size stakes by four of its RC siblings - and will be overtaken in 2024 by another “Oasis-class” ship from the brand, which is yet to be named.

Here’s the lowdown on the Big 10 when it comes to cruising, and their larger-than-life features - from onboard surfing lessons to ziplines.

The world’s top 10 biggest cruise ships

1. wonder of the seas.

Operated by: Royal Caribbean

Weighing in at 236,857 gross tonnes and measuring 362m long and 64m wide, this hulking liner has capacity for 6,988 passengers, with more than 20 dining venues and 11 bars catering to them. Its mind-boggling facilities include the tallest waterslide at sea (the Ultimate Abyss), a casino, a carousel, a Flowrider surf machine, jogging track, zipline and outdoor cinema. The fifth in the operator’s “Oasis class” series of mega-ships has eight “neighbourhoods” or leisure zones, while all other Oasis ships have seven. The new ’hood is the “Suite Class” zone - essentially a lavish VIP area over three decks, where suite-class guests can bask on their own sundeck, plunge pool, bar and lounge.

2. Symphony of the Seas

This 362m-long vessel weighs in at 228,081 gross tonnes - 8,776 less than its gigantic new sibling. It has capacity for 6,680 passengers, to Wonder’s 6,988. But its facilities are no less showy: a laser-tag attraction, an ice-skating rink and AquaTheatre, rock-climbing walls, a FlowRider, an escape room and 21 food and drink outlets. Symphony also made a splash with its Ultimate Family Suite, which was deemed “cool” but also incredibly expensive by critics. Costing from $25,492 (£19,210) for a seven-night cruise for four, this multi-level candyland stateroom has its own tube slide, cinema, gaming tables and “genie” butler.

3. Harmony of the Seas

Only a metre shorter in size than both Wonder and Symphony (361m), Harmony weighs in at 227,000 gross tonnes and can accommodate 6,780 guests. It has many of the same headline features of its bigger siblings: the Ultimate Abyss waterslide, the FlowRider, zipline, and seven distinct “neighbourhoods”. Of the diverse crew, RC says: “there is one ice skate sharpener, a face painter, seven high divers, and two tight-rope walkers - not to mention two robots who staff the Bionic Bar.”

4. Oasis of the Seas

Getting marginally smaller at this stage, Oasis is 362m long and weighs 226,838 gross tonnes, with room for “just” 5,400 passengers. There are plenty of places to take a dip onboard, with four pools and 10 whirlpools, while its full-service spa, basketball court, ice rink and climbing walls all stack up to the top three’s facilities. The ship underwent a refurbishment in late 2019, with the cruise line’s first barbecue restaurant, Portside BBQ, added, along with the Ultimate Abyss slide and Music Hall theatre.

5. Allure of the Seas

The 16-deck Allure is 362m long and weighs 225,282 gross tonnes, hosting 6,780 passengers. It held the title of world’s largest cruise ship for six years, before its hefty siblings set sail. It delighted fans with its world-beating kids’ club and also has the seven “neighbourhood” zones shared by all Oasis-class ships, including a youth zone and a Coney Island-style boardwalk. Its swish 150 Central Park restaurant (a premium add-on) has a six-course tasting menu, but there are 10 food outlets included in your cruise price.

6. Costa Smeralda/Costa Toscana

Operated by: Costa Cruises

Costa Smeralda (337m long, 180,000 gross tonnes) was christened in February 2020, with Rome-inspired features such as a “Trastevere” area and “Piazza di Spagna” steps. Costa ships tend to have a more muted, traditional and grown-up look than RC’s “colour explosion” vibes - Smeralda also has a waterpark, spa and swanky restaurant with menus by top global chefs Bruno Barbieri, Hélène Darroze and Ángel León. It was awarded Green Plus status by certification body RINA for its compliance with sustainability measures, including the use of LNG (liquefied natural gas) and onboard desalination for water use. Twin ship the Costa Toscana - the same length, with just 5 more gross tonnes to its name - will set sail later this month.

Operated by: P&O Cruises

The 344m-long, 184,700 gross tonne Iona launched in February 2020, with room for 5,200 guests. It’s double-height “Sky Dome” area serves as a pool, bar and leisure area by day, and is used for entertainment at night. The vessel’s new “Conservatory mini suites” also added an affordable suite option for passengers. The greenest member of P&O’s fleet, and the first British cruise ship to be powered by LNG, it has a four-screen cinema, a teen “Scene” area, spa and 30 restaurants. Iona will depart on many European itineraries this year, including the Norwegian Fjords, Northern Europe, Spain and Portugal, and the Canary Islands.

8. AIDAnova

Operated by: Aida Cruises

The first of seven next-generation LNG-powered cruise ships ordered by Carnival Corporation - to sail under its German Aida brand - AIDAnova is 337m long and weighs in at 183,900 gross tonnes. Mostly serving itineraries around the Canary Islands, Germany, Norway and Madeira, she has specially designed single occupancy cabins and a “time travel” dinner experience. An onboard TV studio can produce its own quiz or game shows, with guests as the audience, while its foodie streak extends across 17 restaurants, including a teppanyaki bar and “Street Food Mile” serving global bites.

9. AIDAcosma

At 337m long, 183,200 GT heavy and 20 decks high, accommodating 5,200, Cosma is the only-marginally little sister to Nova. This cruiser launched on 26 February with a climbing wall and running track for fitness devotees, a waterpark area with slide that families love, and a sea-view sauna. It’s the second sustainable, LNG-run vessel in the series, with a pampering Body & Soul organic spa as well as lots of kid-friendly restaurants. Its standout “Ocean Deck” zone is a wraparound area of pools and sun terraces spread over four decks.

10. Mardi Gras

Operated by: Carnival

At 181,808 gross tonnes and 340m long, Mardi Gras is a mere minnow compared to some of the new-generation megaships. But she packs a lot into that size: housing 6,500 passengers, she has a spa and casino, six themed areas - including one zone inspired by New Orleans’ French Quarter, and a high-ceilinged, glassy atrium known as Grand Central - plus the first-ever rollercoaster at sea. She was North America’s first ship to be powered by LNG, and has the largest water park of Carnival’s fleet.

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Watch CBS News

A look inside the Icon of the Seas, the world's biggest cruise ship, as it prepares for voyage

By Kris Van Cleave , Analisa Novak

January 18, 2024 / 12:14 PM EST / CBS News

Royal Caribbean is redefining the cruise industry with its latest ship, the Icon of the Seas. This $2 billion floating resort is largely booked until 2026.

Spanning nearly 1,200 feet, the cruise ship has 20 decks, which makes the Icon of the Seas the world's largest cruise ship.

It's a city at sea, accommodating up to 7,600 passengers in 2,805 staterooms and nearly 10,000 people, including the crew. The ship offers different experiences that include seven pools — one is the largest on any ship — the world's first onboard water park with six water slides, theaters, a casino and over 40 dining and drinking spots.

Jay Schneider, Royal Caribbean's Chief Product Innovation Officer, says the cruise ship is more than just its amenities.

"It's really about iconic experiences," he said.

And despite its massive size, Schneider said the ship is designed to avoid feeling overcrowded.

"We have purposely designed the ship to give more space for people," he said. "We believe, even at 7,500 guests, it won't feel to you like your entire hometown has joined the ship," said Schneider.    

Luxury comes at a price on the Icon. A weeklong Caribbean cruise costs about $3,500 for two people in an average stateroom. For those seeking more luxury, the Ultimate Family Townhouse – a three-story suite complete with touchscreen tables and a slide – can go for up to $100,000 per trip. The Royal Loft, aimed at high-rolling adults, offers two bedrooms, a private hot tub, and a spacious balcony starting at $40,000.

Colleen McDaniel, editor-in-chief at Cruise Critic, said that bigger ships benefit both passengers and cruise lines.

"It means more people can experience something. It means that there's a lot more amenities and activities onboard the cruise ship," McDaniel said. "The more people they can put on a cruise ship, of course, the better business they do, the more money they make."

Kevin Curran says the Icon took his breath away. Having followed the ship's construction for over a year, the Oregon resident said he's thrilled to be on its inaugural cruise from Miami.

"The more I watched the videos, the more I understood this was something special," he said.

Cruising is surging in popularity. Last year, passenger volume outpaced pre-pandemic numbers, and this year is expected to hit a new high of 36 million as spending on experiences has climbed 65% since 2019.

From the bridge, Captain Hendrik Loy is overseeing what amounts to a three-day test drive to the Bahamas.

"There is still fine-tuning that needs to take place," said Loy.

The Icon also champions environmental responsibility. It's powered by liquefied natural gas, treats its own waste, and produces its own water.

Emmy Award-winning journalist Kris Van Cleave is the senior transportation correspondent for CBS News based in Phoenix, Arizona, where he also serves as a national correspondent reporting for all CBS News broadcasts and platforms.

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Watch: A look at world's largest cruise ship as it leaves Port of Miami

The world's largest cruise ship has set sail from Miami, Florida, on its maiden voyage.

The 365m-long (1,197 ft) Icon of the Seas has 20 decks and can house a maximum of 7,600 passengers. It is owned by Royal Caribbean Group.

The vessel is going on a seven-day island-hopping voyage in the tropics.

But environmentalists warn that the liquefied natural gas-powered ship will leak harmful methane into the air.

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