Welcome to Hurricane Harbor Chicago! Hurricane Harbor Chicago, the 20-acre water park on Six Flags Great America property, is located between Chicago and Milwaukee and offers fun in the summer sun for the entire family with 25 splash-filled attractions, including the world’s tallest water coaster, thrilling water slides and kids’ splash pads. If your family is looking for things to do in or around Chicago, IL you’ve come to the right place. With towering exciting water slides, relaxing lazy river and wave pool, and splash parks for the kids, Hurricane Harbor Chicago has something for everyone!