About Lost Island Waterpark

Amusement park with seasonal hours. Multiple slides & pools plus an arcade, pool hall, go-kart track, mini-golf course & concessions.

💬 What Parents Say

  • 💡Rent a cabana for the best experience with families - you get assigned staff to bring food and drinks directly to you, eliminating wait times. Multiple reviews highlight this as totally worth the investment for groups with kids.
  • 💡Bring water shoes - multiple visitors mentioned them in reviews. The park's concrete areas get hot and water shoes provide comfort throughout the day.
  • 💡Plan your day around the wave pool and lazy river as primary attractions - these are the most-mentioned features and can easily occupy most of an afternoon for the whole family.
  • 💡Food prices are significantly higher than outside vendors (expect $30+ for basic items like pizza). Consider eating before arrival or packing snacks to save money, unless you're using a cabana service.
  • 💡Download the mobile app to stay updated on special events and special offers - the park runs multiple seasonal promotions like Memorial Weekend Specials and Season Pass Appreciation Days.

Lost Island Waterpark

★★★★☆ 4.5 (1761 reviews)
📍 2225 E Shaulis Rd, Waterloo, IA 50701
water parktheme parkmini golfgo-karts
Best For
all ages

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