Six Flags Great America
Large amusement park, with many rides and shows, located in Gurnee, IL, approximately 2.5 hours driving time from Madison.
Admission to Hurricane Harbor Water Park is included in ticket price.
Directions from Madison: Interstate 94 to Milwaukee, take 894 around Milwaukee, 94 towards Chicago, exit Grand Ave. (Rt. 132) East in Gurnee, Illinois. Six Flags is located immediately on the right.