Jason B.
8/21/2025
Fabulous place. We did a big long summer vacation across the country seeing many national parks and other great sites. The one thing my boys liked best all summer was this Lost Island Waterpark....
Lost Island Water Park
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2225 E Shaulis Rd
Waterloo, IA 50701
Lost Island is a tropical getaway hidden in the heart of the Midwest! Have you ever seen palm trees in Iowa? How about mysterious ancient ruins? Walking through the gates at Lost Island will make you feel like you just stepped off a plane in some far away destination. We offer a wide range of attractions for all thrill levels. Enjoy the Wailua Kupua - one of the first hydromagnetic watercoasters in the country! Splash around in Tsunami Bay, race your friends down Ta'Katipo, lounge in a deluxe cabana, or float around the Kailahi River. With over 20 attractions available, it won't take you long to get lost.
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Reviews
4.041 reviews
Hayley N.
9/11/2025
This waterpark was a lot of fun to travel to! There were so many things to do depending on age and activity level. We traveled to Waterloo from Omaha meeting family from Milwaukee and Des...
Planctine F.
6/6/2025
Oh me oh my. Please don't listen to the haters. I came here with my buddies ready to get wet on a cloudy day. And I can assure you, we got pretty dang drenched. Every slide was great, and one...
Michelle D.
6/23/2025
June 2025. parking is $10.00 per car, larger vehicles are $15.00 per. pay the parking because they will photograph your plate and put a " barnacle" on your windshield. if you have a season pass...
Michael P.
6/8/2025
We love the water park. Usually visit a few times every summer. But maybe just once this year, because they decided to charge $10 for parking on top of the high cost of admission.
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