Due to COVID-19 we are operating at reduced capacity.

Please review the following numbers prior to your visit. Once capacity is reached, we will follow "One in, one out" policy.

Read our entire response to COVID-19.


Please contact us with any questions or concerns you may have about the Lost Island Waterpark. We love to hear your feedback on our park as well as this site.

E-Mail Us


Call Us

(319) 233-8414

Fax Us

(319) 236-6101

Mail Us

Lost Island Waterpark
2225 East Shaulis Road
Waterloo, IA 50701

Charitable Gift Application

All donation requests must be submitted online. Click Here

Lifeguard at Lost Island Water park