The Wait Is Almost Over!

Wisconsin's Largest Indoor Waterpark is getting bigger with an $85M expansion. Our brand-new 75,000-square-foot indoor waterpark expansion is still under construction but will be opening soon! Featuring a glass-enclosed, open-air waterpark with a retractable roof, We can’t wait to welcome you in late October 2026 to experience endless thrills, unforgettable memories, and so much more!

Experience Zambezi Rapids, the world's first enclosed boomerango, a near-vertical wall climb waterslide. Put your racing skills to the test on the Nile River Racers or see if you can twist and turn along the Viper Venom waterslide. 

Enjoy an array of other new amenities and attractions including the Dolphin Reef family whirlpool, the Watering Hole with zero-depth entry and tanning ledges, Adventure Bay interactive water playground for our youngest slide lovers with 6 new slides to enjoy, and The Grotto adult swim-up bar.