Island Water Park is the best Waterpark in the Central Valley. We have the best Water Slides in the Fresno area. Island Water Park is located in Fresno and close to Visalia, Tulare, Hanford, Madera, Clovis and less than an hour from Merced. Our Waterpark offers Tube Slides, Body Slides and Family Rafts. We have a Wave Pool and Lazy River as well as many High Thrill Rides. Looking for Central Valley Water Slides and the best family fun and adventure in the Fresno area? Come to Island Waterpark for the best in Water Slides, Entertainment and family fun!