Ha Ha Tonka State Park

Park Information


With its intriguing history and outstanding geologic features, Ha Ha Tonka State Park is one state park that should not be missed. The park is a geologic wonderland featuring sinkholes, caves, a huge natural bridge, sheer bluffs and Missouri’s 12th largest spring. The ruins of a turn-of-the-century stone castle overlook these wonders and offer impressive views of the Lake of the Ozarks and Ha Ha Tonka Spring.

A series of trails and boardwalks makes it easy for visitors to experience all the park has to offer, from its historic castle and geologic wonders to its woodlands and open rocky glades. Picnic sites beckon visitors for a relaxing lunch in a scenic setting unparalleled in the lake area. All these fascinating elements combine to create a park that can be explored and enjoyed time after time.

Park Hours

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

Park Grounds

Summer Hours (On-Season)

  • April through October
    7 a.m. to sunset daily

Winter Hours (Off-Season)

  • November through March
    8 a.m. to sunset daily

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

Park Office/Visitor Center hours

Temporary Hours

Sept. 6, 2022, through October 2022
10 a.m. to 3 p.m., daily

Regular Hours

Summer Hours (On-Season)

  • April through October
    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.

Winter Hours (Off-Season)

  • November through March
    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.