The 5,062-guest Oasis of the Seas was the largest vessel at sea when it launched in 2009 — at full capacity, the ship can accommodate 6,771 passengers — but it has since been eclipsed by newer Royal Caribbean Oasis-class ships (Allure of the Seas, Harmony of the Seas, Symphony of the Seas, and Wonder of the Seas) as well as by 2024’s Icon of the Seas. Nonetheless, this vessel is still a mammoth sight to behold. It is home to seven distinct "neighborhoods,” including a bustling Boardwalk with a classic carousel and a Central Park filled with over 12,000 plants and upscale boutiques that are designed to mirror New York City’s famous Fifth Avenue.
On its 10th anniversary in 2019, Oasis of the Seas underwent a $165 million refurbishment. Enhancements include the addition of 59 staterooms (including two luxury Ultimate Panoramic Suites), an updated adults-only area (The Solarium), plus new restaurants, bars, entertainment venues, and more. The craziest additions? The looping trio of waterslides known as The Perfect Storm and The Ultimate Abyss dry slide, which sends riders spiraling down 10 decks of corkscrew loops.