Click here for more information on boating in the park. Hours On Season: 7 a.m. - 9 p.m.Off Season: 7 a.m. - 6 p.m. Weather Check Weather Coordinates 38.435976, -90.817838 Park HoursPark Grounds Summer Hours (On-Season) April through October 7 a.m. to 9 p.m., daily Winter Hours (Off-Season) November through March 7 a.m. to 6 p.m, daily Park gates open and close at these times. Boat Launch hoursOn Season: 7 a.m. - 9 p.m. Off Season: 7 a.m. - 6 p.m. Park Office hours Summer Hours (On-Season) April through October Noon - 4 p.m. Wednesday through Sunday Winter Hours (Off-Season) Closed Please note there will be times when the office is temporarily closed while staff are working on the grounds. The office telephone is monitored for messages during office hours.