Water World is a water park that is part of the Hyland Hills Park and Recreation District and is located in Federal Heights, Colorado, roughly 10 miles north of downtown Denver. The park first opened in 1979 with the first two waterslides in the state of Colorado. Water World is generally open from Memorial Day through Labor Day, but may be closed some school days. The park occupies 67 acres, making it one of America's largest water theme parks.  The park has over 49 attractions, including a multitude of water slides, a "lazy river,” inflatable tube rides, multi-guest inflatable raft rides, and a water-themed fun house. The park also has two wave pools.