 The , $750 million development included a nearly waterpark, which is Schlitterbahn's fourth waterpark and its first outside Texas.Groundbreaking took place September 18, 2007 on the land formerly occupied by the Wyandotte County Fairgrounds and the Unified Government courthouse annex, across Interstate 435 from the Kansas Speedway and Village West.Phase 1 included the opening of 12 water attractions, 3 restaurants, and 2 shops.