Soak City Waterpark - The all-new Soak City is the premier waterpark in the region. Families can splish, splash and laugh on more than 50 water activities, including 30 water slides, tropical lagoons, rushing rivers, and surfable waves. Our newest attractions include an Action River and 650,000-gallon Wave Pool. Soak City is included free with Kings Island park admission tickets and season passes. Two parks for one great price!