Park Hours Park Hours Weather Check Weather Coordinates 39.770500, -92.527067 Park HoursFor temporary closures related to weather, stewardship activities and maintenance, as well as temporary trail closures, click here to visit our Park and Site Status Map. Park Grounds Sunrise to 10 p.m., daily, year-round Park Office hoursYear-round: 7:30 a.m. to 4 p.m., Monday through Friday Marina Store hours Memorial Day through Labor Day 8 a.m. to 6 p.m., daily Beach hoursSeason: May 23 to Sept. 1 Sunrise to sunset
