- Introduced
- 2009
- Gross tonnage
- 225,000 – 236,857 GT
- Capacity
- 5,400 – 6,988 (max)
Oasis Class was the class that redefined what a cruise ship could be. Launched in 2009 with Oasis of the Seas, the class introduced the seven-neighbourhood layout — Central Park (open-air garden), Boardwalk (Coney Island-inspired promenade), Royal Promenade, Pool & Sports Zone, Youth Zone, Vitality Spa, and Entertainment Place — plus the AquaTheater, a purpose-built outdoor diving and acrobatics venue.
Six ships have been delivered: Oasis of the Seas (2009), Allure (2010), Harmony (2016), Symphony (2018), Wonder (2022), and Utopia of the Seas (2024). The later ships in the class add refinements — Ultimate Abyss dry slide, Perfect Storm water park, escape rooms — but share the same fundamental architecture.
Oasis Class remains the workhorse of Royal's Caribbean deployment. Utopia of the Seas is the first Oasis-class ship built for short-cruise duty (three- and four-night Bahamas sailings) and represents a deliberate step down in itinerary length while keeping the full mega-ship experience intact.
Ships in the Oasis Class

Launched 2024
Utopia of the Seas
The sixth Oasis-class ship — LNG-powered and the first Oasis-class vessel built for short-cruise duty from Port Canaveral.

Launched 2022
Wonder of the Seas
The fifth Oasis-class ship — briefly the largest afloat, now a Caribbean and Mediterranean workhorse.

Launched 2018
Symphony of the Seas
The fourth Oasis-class ship — Miami-based year-round, Ultimate Family Suite and Ultimate Abyss.

Launched 2016
Harmony of the Seas
The third Oasis-class ship — introduced the Ultimate Abyss dry slide and the Perfect Storm waterpark to the class.

Launched 2010
Allure of the Seas
The second Oasis-class ship — Galveston-based, Texas-market Caribbean workhorse.

Launched 2009
Oasis of the Seas
The original Oasis-class ship — the vessel that redefined modern mega-ship cruising, now New York-based.
Also in Royal Caribbean International
Other ship classes
Cruise line