The Treasure Island Water and Theme Park Resort in the Wisconsin Dells is the largest mega-amusement park complex in the area

The complex itself features an indoor and outdoor water park area and amusement park attractions such as roller coasters, bumper boats, go-carts and kiddie rides.

The Bay of Dreams Indoor Water Park offers several thrilling slides, a lazy river, jungle net water crossing, interactive pirate-themed water play area, with waterspouts and geysers, and a large mayan-themed whirlpool. The outdoor water park features several water slides and a wave pool.

The complex itself is called the Mt. Olympus Water & Theme Park with Treasure Island being the name of the resort lodging. Budget accommodations are available at the Pleasant View Motel, and motel guests receive passes to the outdoor attractions with the "Stay and Play Free" package option.