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Ha Ha Tonka State Park

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Park Information

Imposing architecture and breathtaking scenery combine to make Ha Ha Tonka State Park one of Missouri’s most treasured spots. Located on the Lake of the Ozarks, the park features the stone ruins of a turn-of-the-20th-century castle built by a prominent Kansas City businessman high atop a bluff. More than 15 miles of trails traverse the park, leading visitors to sinkholes, natural bridges, caves and down to the lake.

Park Hours

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 hours

Summer Hours (On-Season)

  • April through October
    10 a.m.- 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
    Office is not regularly staffed. Park staff are usually available in the park daily. The office telephone answering machine is monitored for messages during daytime hours.

Visitor Center hours

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. 

Address

1491 State Road D
Camdenton, MO 65020-9801

Phone number

  • Park Office: (573) 346-2986
Missouri State Parks and Historic Sites
May 23, 2013
Fifty years ago, if you had arrived at the natural tunnel in Bennett Spring State Park, you would have seen a lake. Around 1964, a dam created from gravel and silt and reinforced with rebar and concrete blocked the upstream entrance of the natural tunnel. There is no record of how long the resulting lake lasted, but historical accounts state the dam failed after heavy rains, leaving only the portion of the structure seen today at the end of the trail. Walk the Natural Tunnel Trail today and imagine what it would have been like 50 years ago. For more information about this trail, other trails at the park, and all the other things you can do at Bennett Spring State Park, visit mostateparks.com.