Cruise ships, over the last few decades, havent 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 worlds first mega cruise ship.

1. Symphony of the Seas (Royal Caribbean International)

Tonnage: 227,625 tonsCapacity: 5,400 passengers Built: 2018Length: 362.1 metersBeam: 47.4 metersSailing regions in 2021: Caribbean

2. Harmony of the Seas (Royal Caribbean International)

Tonnage: 227,625 tonsCapacity: 5,400 passengers Built: 2016Length: 362.1 metersBeam: 47.4 metersSailing regions in 2021: Caribbean and Mediterranean

3. Allure of the Seas (Royal Caribbean International)

Tonnage: 220,000 tonsCapacity: 5,400 passengers Built: 2010Length: 362 metersBeam: 47 metersSailing regions in 2021: Caribbean

4. Oasis of the Seas (Royal Caribbean International)

Tonnage: 220,000 tonsCapacity: 5,400 passengers Built: 2008Length: 361.6 metersBeam: 47 metersSailing regions in 2021: Caribbean, Bahamas, and East Coast

5. Mardi Gras (Carnival Cruise Line)

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

6. Iona (P&O Cruises)

Tonnage: 183,900 tonsCapacity: 5,200 passengers Built: 2020Length: 337 metersBeam: 42 metersSailing regions in 2021: Northern Europe and the Canaries

7. AIDAnova (AIDA Cruises)

Tonnage: 183,900 tonsCapacity: 5,000 passengers Built: 2018Length: 337 metersBeam: 42 metersSailing regions in 2021: Mediterranean and the Canaries

8. Costa Smeralda (Costa Crociere)

Tonnage: 182,700 tonsCapacity: 5,224 passengers Built: 2019Length: 337 metersBeam: 42 metersSailing regions in 2021: Mediterranean

9. MSC Grandiosa (MSC Crociere)

Tonnage: 177,100 tons Capacity: 4,888 passengers Built: 2019Length: 331 metersBeam: 43 metersSailing regions in 2021: Mediterranean

10. Spectrum of the Seas (Royal Caribbean International)

Tonnage: 168,666 tons Capacity: 4,100 passengers Built: 2019Length: 347 metersBeam: 41.4 metersSailing 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: 2022Length: 362.1 metersBeam: 47.4 meters

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

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

3. MSC World Europa (MSC Crociere)

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

4. Icon Class I (Royal Caribbean International)

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

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The World's 10 Biggest Cruise Ships - Cruise Industry News