Called Category 6, the new 17,000sq ft (650sq m) waterpark will feature six water slides, including an open free-fall slide, the tallest drop slide at sea, family raft slides that accommodate four riders at once and two mat-racing slides.

The Category 6 Waterpark, located on Royal Caribbean's Icon of the Seas and its sister ships in 2026, features six record-breaking slides. As the largest waterpark ever built on a cruise ship, it occupies a massive footprint on the top deck (Thrill Island). The six slides include: Frightening Bolt, the tallest drop slide at sea; Pressure Drop, the first open free-fall slide at sea; Storm Surge and Hurricane Hunter, which are the first family raft slides at sea allowing groups of 3–4 to ride together; and Storm Chasers, a duo of mat-racing slides where passengers can compete for the fastest time. Beyond just the number of slides, the park is notable for its use of "translucent" sections that hang over the edge of the ship, giving riders a view of the ocean hundreds of feet below. In 2026, this waterpark remains a primary selling point for families, though guests should be aware that certain slides have height and weight requirements, and popular times can result in wait times of 30 to 45 minutes, making early morning or port days the best time to experience all six.