This will be our company's 3rd year going to Lost Island Water Park, the attendance goes up and up every year due to the word of mouth on how much fun it is!!! What a time saver for me, no more worries about where to have it and what equipment to rent for like tables, tents, equipment for the children,... more

went in the summer of '02. admission was pricy, and there were few slides. (2 new slides have been added since my trip.) I'd say this...remember, you live in iowa. that being said, it's a great park. but if you have the time on your hands, drive somewhere else in the midwest for a GREAT park elsewhere. but to stay... more

Our family of four (kids are 7 and 4) absolutely loves the park. We visited about 2 or 3 times last year and are looking forward to this seasons. Very clean and kid friendly. Closing time of 6:30 pm is too early for the summer. more

My family discovered a really nice water park last weekend. It's called "The Lost Island" and is located in Waterloo, Iowa just south of I-20 off of Hwy 218. Its rides are comparable to that of some of the larger, nationally-ranked water parks we've visited, but on a smaller scale that is appropriate for its location in eastern Iowa. There's... more