Lost Island Waterpark

Lost Island is the largest waterpark in Iowa and a top 5 waterpark in the nation as voted in USA Today's 10Best Readers' Choice Awards.

Photos from Lost Island Waterpark's post

07/05/2026

Who's ready for a swim?! Come cool off with us today! 💦

07/03/2026

What it really means when I say I'm spending the 4th of July on the river. 😎🇺🇸💦

Lost Island Waterpark is open on Independence Day from 10:30-6:30! See you there!

07/02/2026

Due to the ongoing storms, Lost Island Waterpark will remain closed for the rest of the day.

Check out this photo before the storm reached the park!
Stay safe out there!