Facility Hours

Ha Ha Tonka State Park

2025-2026 State Holidays

On the following days (actual or observed), staff will not be available and park buildings will be closed: Thanksgiving Day; Nov. 28, 2025; Christmas Eve; Christmas Day; New Year’s Eve; New Year’s Day; Martin Luther King Jr. Day; Lincoln’s Birthday; and Washington's Birthday.

Know Before You Go: Park and Site Status Map

For temporary closures related to weather, stewardship activities and maintenance, as well as temporary trail closures, please visit our Park and Site Status Map.

Park Grounds

April through October (On-Season)
7 a.m. to sunset, daily

November through March (Off-Season)
8 a.m. to sunset, daily

The outdoor interpretive area, restrooms and brochures are available during these times. The park gates close at sunset. 

Park Office/Visitor Center - Ha Ha Tonka

April through October (On-Season)

10 a.m. to 5 p.m. daily

On occasion, the park office may be temporarily closed while park staff assist large groups or conduct outdoor interpretive programs.

November through March (Off-Season)

The office is not regularly staffed. Park staff are usually available in the park daily. The office telephone is monitored for messages between 8 a.m. and 4 p.m., Monday through Friday.