Harmony of the Seas is Royal Caribbean’s latest flagship. She follows on from her two older sister ships (Oasis of the Seas, Allure of the Seas) and combines new features found on the Quantum-class ships, such as Jamie’s Italian Restaurant and virtual balconies. The main difference this ship has over her two sisters is a large enclosed water-slide at the rear of the ship called the “Ultimate Abyss”
Harmony of the Seas is just 1 foot longer than her older sister ships. Making her the world’s biggest cruise ship currently.