Top 7 Biggest Cruise Ships in the World (2025)

Cruise holidays have redefined the meaning of luxury travel. For travelers seeking unforgettable experiences on the water, the biggest cruise ships in 2025 offer floating cities of indulgence, entertainment, and adventure. If you're planning your dream cruise with a trusted travel agency in Calicut or looking for the best tour operators in Calicut, this guide is your ticket to the world’s most majestic ocean liners.

1. Icon of the Seas – Royal Caribbean

Currently the largest cruise ship in the world, Icon of the Seas from Royal Caribbean is a massive vessel introduced in 2024. It has a gross tonnage of 250,800 GT, making it the heaviest cruise ship ever built. The ship stretches 1,198 feet (365 meters) in length and contains 20 decks, with 18 open to guests. It accommodates over 7,600 passengers at full capacity and is supported by a dedicated crew of around 2,350 members. Icon of the Seas stands as a symbol of next-generation cruise travel with unmatched size and onboard space.

Top Attractions:

• Category 6 Waterpark – Largest at sea with six record-breaking slides

• AquaDome – Dome-covered entertainment with aerial acrobatics and ocean views

• Central Park – A lush green oasis with 20,000+ live plants

Activities:

• Surf on the FlowRider

• Zip-lining over the ship's deck

• Ice-skating rink and escape rooms

Food to Explore:

• Empire Supper Club (8-course gourmet dining)

• Surfside Bites (family-friendly fast food)

• Hooked Seafood (New England-style)

2. Wonder of the Seas – Royal Caribbean

Launched in 2022, Wonder of the Seas remains one of the most impressive cruise ships in the world. It has a gross tonnage of 236,857 GT and a length of 1,188 feet (362 meters). Designed with 18 decks, the ship can host up to 6,988 guests and is staffed by a crew of approximately 2,300. As part of Royal Caribbean’s Oasis Class, Wonder of the Seas set a benchmark in scale and passenger capacity, serving as a floating city on the sea.

Top Attractions:

• The Ultimate Abyss – Tallest slide at sea

• Boardwalk Neighborhood – Carnival vibes and arcade games

• The Vue Bar – Suspended over the ocean with panoramic views

Activities:

• Rock climbing walls

• Diving shows at AquaTheater

• Youth zones and family escape rooms

Food to Explore:

• Mason Jar Southern Restaurant

• Giovanni’s Italian Kitchen

• Playmakers Sports Bar & Arcade

3. Utopia of the Seas – Royal Caribbean (New Launch 2024)

The Utopia of the Seas is a 2024 addition to Royal Caribbean’s Oasis Class fleet and mirrors the grandeur of its sister ships. It weighs 236,860 gross tons and is 1,188 feet (362 meters) in length. The ship has 18 guest decks and is designed to accommodate over 7,000 passengers. With a crew of around 2,300, this ship balances comfort, safety, and performance across all its levels. Utopia of the Seas continues to push the boundaries of modern marine engineering.

Top Attractions:

• Perfect Day at CocoCay access – A private island with watersports

• Casino Royale – High-stakes entertainment

• Pool Deck Oasis – Longest resort-style pool at sea

Activities:

• Glow-in-the-dark laser tag

• 10+ pools and whirlpools

• Caribbean-themed beach club parties

Food to Explore:

• Lime & Coconut Bar (tropical drinks)

• Izumi Hibachi & Sushi

• Coastal Kitchen (exclusively for suite guests)

4. Symphony of the Seas – Royal Caribbean

First launched in 2018, Symphony of the Seas is one of Royal Caribbean's flagship cruise liners. It boasts a gross tonnage of 228,081 GT and extends 1,188 feet (362 meters) long. With 18 decks and room for 6,680 passengers, it remains among the most spacious cruise ships at sea. The vessel is operated by a skilled crew of about 2,200. Despite newer ships entering the fleet, Symphony continues to be a traveler favorite thanks to its size and scale.

Top Attractions:

• Bionic Bar – Robots mix your cocktails!

• Royal Promenade – Shopping and parades

• AquaTheater – Daring diving shows

Activities:

• Zip line above Central Park

• 3D movie theater

• Onboard musical productions like Hairspray

Food to Explore:

• El Loco Fresh (Mexican)

• Jamie’s Italian

• Wonderland Imaginative Cuisine (molecular gastronomy)

5. Harmony of the Seas – Royal Caribbean

Harmony of the Seas is another Oasis Class ship that showcases Royal Caribbean’s engineering excellence. Built in 2016, the ship has a gross tonnage of 226,963 GT and a length of 1,188 feet (362 meters). With 18 decks and space for 6,687 guests, it remains a top choice among cruisers. The vessel is managed by a crew of approximately 2,300 members, offering a seamless sailing experience on one of the largest ships in history.

Top Attractions:

• Perfect Storm Waterslides

• Seven Distinct Neighborhoods – Including the Youth Zone and Vitality Spa

• Ultimate Abyss slide

Activities:

• Dance classes and fitness sessions

• Mini golf and zip lining

• Outdoor movie nights

Food to Explore:

• Chops Grille (steakhouse)

• 150 Central Park (fine dining)

• Sorrento’s Pizza (New York-style pizza)

6. MSC World Europa – MSC Cruises

MSC World Europa, launched in 2022, is the largest and most advanced ship ever built by MSC Cruises. With a gross tonnage of 215,863 GT and a length of 1,094 feet (333 meters), it is a pioneering ship in both design and sustainability. The ship spans 22 decks and can carry up to 6,762 guests along with 2,138 crew members. It’s also one of the first LNG-powered cruise ships, marking MSC’s move toward greener cruising.

Top Attractions:

• The Venom Drop – Longest dry slide at sea (11 decks!)

• Indoor Promenade with LED dome ceiling

• Zen Pool – Adults-only infinity pool

Activities:

• MSC Formula Racer (F1 simulator)

• Drone academy for teens

• Panoramic yoga sessions

Food to Explore:

• Chef’s Garden Kitchen (farm-to-ocean)

• La Pescaderia (fresh seafood)

• Luna Park Pizza & Burgers

7. Costa Smeralda – Costa Cruises

The Costa Smeralda is an Italian-built cruise ship that entered service in 2019. It has a gross tonnage of 185,010 GT and measures 1,106 feet (337 meters) in length. With 20 decks and the ability to accommodate 6,554 passengers, it is one of the largest ships in the Costa fleet. The vessel is staffed by approximately 1,678 crew members and is also LNG-powered, reflecting Costa Cruises’ commitment to sustainable travel.

Top Attractions:

• Colosseo – Three-level entertainment space

• Solemio Spa – Full-service spa with salt rooms

• Piazza di Spagna – Italian piazza-style open-air deck

Activities:

• Italian music concerts

• Outdoor gym and jogging track

• Kids and teens club

Food to Explore:

• Archipelago (Michelin-star chef menus)

• Teodora Lounge (Italian aperitifs)

• Gelateria Amarillo (Italian gelato)

Plan Your Cruise with the Best Travel Experts in Calicut

Planning a cruise journey requires careful attention to details—from selecting the right ship to arranging visas and international flights. By working with a reputable travel agency in Calicut or trusted tour operators in Calicut, you can enjoy a smooth, hassle-free experience with customized packages, group deals, and professional support. Whether you're heading to the Caribbean, the Mediterranean, or Northern Europe, your dream cruise starts right here in Calicut.