We’re Thrilled to Announce Our $85 Million Indoor Waterpark Expansion!

Wisconsin's Largest Indoor Waterpark is getting bigger! Our brand-new 75,000-square-foot indoor waterpark expansion is officially under construction. Featuring a glass-enclosed, open-air waterpark with a retractable roof, We can’t wait to welcome you in Fall 2026 to experience endless thrills, unforgettable memories, and so much more!

Enjoy an array of other new amenities and attractions including the Lost Lagoon spa whirlpool, the Watering Hole with zero-depth entry and tanning ledges, Coral Cove, and The Grotto adult swim-up bar.