What was the name of the first Oasis-class cruise ship operated by Royal Caribbean?

Oasis of the Seas was the first Oasis-class cruise ship operated by Royal Caribbean.

The ship entered service in December 2009 after being built by STX Europe in Turku, Finland. At the time, it was the world’s largest cruise ship, surpassing the earlier Freedom-class vessels in passenger capacity and overall scale.

Oasis of the Seas introduced Royal Caribbean’s distinctive neighborhood layout. Its open-air Central Park and Boardwalk sections divide the ship into themed areas, while features include large entertainment venues, multiple pools, restaurants, and an ice-skating rink.

The ship is the lead vessel of the Oasis class, which later included Allure of the Seas, Harmony of the Seas, Symphony of the Seas, and Wonder of the Seas. Because several later ships are larger or newer, records about the biggest cruise ship change over time; the identifying fact here is that Oasis was the class’s first vessel.