At Universal's Volcano Bay water theme park, the depth of the pools varies significantly to accommodate different levels of thrill and safety. The main attraction, Waturi Beach (the wave pool at the base of the Krakatau volcano), features a "zero-entry" shallow end that gradually slopes to a maximum depth of 6 feet (1.8 meters). In 2026, the park utilizes sophisticated wave-generation technology that can create nine different wave types, necessitating this depth for safety. Other pools, such as The Reef, are approximately 5.5 feet deep, designed for lounging and watching riders emerge from the transparent tube of the Ko’okiri Body Plunge. Conversely, the Kopiko Wai Winding River and the TeAwa The Fearless River are relatively shallow, typically maintained at depths of 3 to 4 feet to ensure that guests can easily stand up if they fall off their tubes. Life vests are mandatory for all guests under 48 inches (122 cm) in any pool deeper than their waist to maintain the park's high safety standards in 2026.