US-based theme park operator Six Flags has announced that entrance to its new Hurricane Harbor waterpark at Gurnee, Illinois, will be free with admission to the existing Six Flags Great America theme park at the site.

Six Flags vice president Ron Sevart said: “By combining these two world-class parks we are offering guests nearly 120 acres of wet and dry thrill rides, shows and attractions.”

The waterpark will boast 25 water slides, a family water playground, a wave pool and a half-mile long adventure river.

Six Flags owns and operates 31 theme and water parks throughout North America and Europe.