Harmony of the Seas' Ultimate WOW

It's not your typical cruise ship water slide and it's not for sissies. Harmony of the Seas' Ultimate Abyss launches thrill seekers from over 150 feet above sea level into a serpentine of twists and turns on the world's biggest cruise ship. Riders climb to the slide's glass platform, taking in the view from the top of the tallest slide at sea. From there, they launch into 216 feet of tunnels, whizzing past multi-sensory effects and blast onto the Boardwalk 10 decks below. Get a behind-the-scenes perspective on the adventure that is the Ultimate Abyss in the video below.

Video Courtesy Royal Caribbean International