Water World (also known as, Hyland Hills Water World or Water World Colorado) is a water park that is part of the Hyland Hills Park and Recreation District and located in Federal Heights, Colorado, roughly north of downtown Denver, Colorado. The park first opened in August 1979 with the first two waterslides in the state of Colorado, the Bonzai Pipeline. Water World is generally open from Memorial Day through Labor Day, but may be closed some school days. The park occupies , making it one of America's largest water theme parks. In 2021, Amusement Today awarded Water World as the 5th best water park in the industry on their Golden Ticket Awards. , the park has 50 attractions including a multitude of water slides, a lazy river, inflatable tube rides, multi-guest inflatable raft rides, two wave pools, and a gondola, which offers access to and from the top of the park. Water attractions The park has several unique water attractions. One of the most notable is Screamin' Mimi, a ride where guests ride board-type vehicles down a roller coaster like track, reaching speeds of before landing in a pool and bouncing across the water. Other notable attractions include Glacier Run, an 8-lane head first mat slide with several steep drops; The Revolution, a 4-person cloverleaf tube ride that leads down into a tube bowl; Storm, a 4-person tube dark slide; and TurboRacer, a racing slide that features eight side by side lanes and a timed open air finish. Water World's most famous attraction is Journey to the Center of the Earth, in which riders ride in small circular multi-passenger inflatable rafts and travel through an artificial cavern. It is themed to a newly discovered cave that reportedly has creatures from the prehistoric era still inhabiting it. It includes steep downward spirals, sudden drop offs, and various dinosaurs, including an animatronic Tyrannosaurus encounter at the end of the ride. The ride is unusual for a water park attraction in its thematic emphasis, and in that it can take in excess of 5 minutes to complete, making it one of the longest rides at any water park. Since then, the ride has had two cosmetic upgrades, the most recent in the 2011 season. The Ride has a throughput capacity of over 1,000 guests per hour. Water World has three wave pools: Turtle Bay, a very small wave pool for toddlers, Cowabunga Beach,