| Six Flags Hurricane Harbor Chicago | |
|---|---|
 | |
 The main entrance to the waterpark. | |
| Slogan | Chicago's Most Thrilling Water Park |
| Location | Gurnee, Illinois, United States |
| Coordinates | 42°22′06″N 87°56′19″W / 42.36833°N 87.93861°W |
| Theme | Caribbean island |
| Owner | Six Flags |
| Opened | May 28, 2005 |
| Operating season | May to September |
| Status | Operating |
| Area | 20 acres (8.1 ha) |
| Pools | 2 pools |
| Water slides | 25 water slides |
| Children's areas | 2 children's areas |
| Website | Official website |
Six Flags Hurricane Harbor Chicago is a 20-acre (8.1 ha) water park located in Gurnee, Illinois, United States. Six Flags owns and operates the park, which is located within the Chicago metropolitan area. The park opened on May 28, 2005, as part of a US$42 million expansion of the adjacent amusement park Six Flags Great America, from which it has been separately gated since 2021.
In the late 1990s, interest in building a water park close to Six Flags Great America was proposed; residents of Gurnee opposed these plans. A later water-park plan succeeded in 2004, when Gurnee officials confirmed a water park would be built. In its first year of operation, the park received 1.3 million visitors.
Six Flags Hurricane Harbor Chicago has 25 water slides and a themed area named Riptide Bay. The most recent addition, Tsunami Surge, is the world's tallest water coaster, which received accolades from the World Waterpark Association and Amusement Today's Golden Ticket Awards.