Meramec State Park

Park Information

The Meramec River flows by majestic bluffs, wooded areas and a dramatic cave entrance. More than 13 miles of hiking trails are available for exploring the park, and visitors can swim, fish, raft and boat in the river. A modern campground, cabins and motel give visitors a choice to stay the night or even longer. Exhibits in the visitor center interpret the natural and cultural features of the park. No visit to the park would be complete without a tour of Fisher Cave with handheld lights. 

Park Hours

For 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.


On the following days (actual or observed), staff will not be available and park buildings will be closed: Thanksgiving Day; Nov. 24, 2023; Christmas Eve; Christmas Day; New Year’s Eve; New Year’s Day; Martin Luther King Jr. Day; Lincoln’s Birthday; and Presidents Day. 

Park Grounds

  • April through October
    7 a.m. to 10 p.m., daily
  • November through March
    7 a.m. to 9 p.m., daily

The park gate opens and closes at these times.

Fisher Cave hours

Educational Cave Tours:

  • Available April 25 through Oct. 15

Regular Cave Tours:

  • May 18-19: 1 p.m. and 3 p.m.
  • May 25-27 (Memorial Day Weekend): 11:30 a.m., 1 p.m. and 3 p.m.
  • June-August: Cave tours will be offered seven days a week at 9:30 a.m., 11:30 a.m., 1 p.m. and 3 p.m.
  • Sept. 1-2 (Labor Day Weekend): Sept. 1: 9:30 a.m., 11:30 a.m., 1 p.m. and 3 p.m. Sept. 211:30 a.m., 1 p.m. and 3 p.m.
  • Sept. 7-8: 1 p.m. and 3 p.m.
  • Closed to regular cave tours Sept. 9-May 15

Tours can be reserved online on our reservation website or can be purchased on demand at the Fisher Cave building, located near the cave entrance. For more information, contact the park at 573-468-6072.

Park Office hours

April through October

9 a.m. to 4:30 p.m., Monday through Friday

November through March

8 a.m. to 3:30 p.m., Monday through Friday

On the following days (actual or observed), staff will not be available and park buildings will be closed: Thanksgiving Day; Nov. 24, 2023; Christmas Eve; Christmas Day; New Year’s Eve; New Year’s Day; Martin Luther King Jr. Day; Lincoln’s Birthday; and Presidents Day. 

Visitor Center hours

April through October (on-season)
9 a.m. to 4:30 p.m., daily 

November through March (off-season)
Closed