What you get
About Lost Island Waterpark
Cool off at Iowa’s largest waterpark! Enjoy 11 major waterslides, the Wailua Kupua hydromagnetic coaster, and a relaxing lazy river in a tropical Waterloo oasis.
On the coast
Serving Waterloo, IA
Cool off at Iowa’s largest waterpark! Enjoy 11 major waterslides, the Wailua Kupua hydromagnetic coaster, and a relaxing lazy river in a tropical Waterloo oasis.