Save on your trip to Lost Island Waterpark and Theme park with this special Family Fun Friday Sweet Deal! Get an admission pass to Lost Island Waterpark or Lost Island Theme park for half price! Or grab tickets to both parks for a truly amazing day!Experience an island getaway in the middle of Iowa at Lost Island Waterpark. Surround yourself with palm trees and island music while you relax in our lazy river, race your friends and family down one of our 11 major waterslides, take the little ones through our four kids areas! It’ll feel like you’re on a tropical vacation, but you’re just a few hours from home. An escape that won’t break the bank…and you’ll be planning your next trip to Lost Island Waterpark before you leave! Save on your trip to Lost Island Waterpark with this special Family Fun Friday Sweet Deal! Get an admission pass to Lost Island Waterpark or Theme park for just $19.50, that’s half off!