Click here for more information about boating in the park. Park Hours Park Hours Weather Check Weather Coordinates 37.603889, -93.735556 Park HoursFor temporary closures related to weather, stewardship activities and maintenance, visit our Park and Site Status Map. Park Grounds Sunrise to sunset, year-round Park Office hours8 a.m. to 4:30 p.m. Monday through Friday year-roundBeach hoursSeason: May 27-Sept. 5 Sunrise to sunset