Onondaga Cave State Park

Park Information

Descend into the depths of Onondaga Cave State Park and drop into a world of wonder: towering stalagmites, dripping stalactites, and active flowstones help make the cave a National Natural Landmark and illustrate why Missouri is often called “The Cave State.” Visitors can take guided tours into the underground wonderland. But if you prefer the surface, the park’s Vilander Bluff Natural Area provides a panoramic view of the Meramec River. Easy access to the Meramec River allows visitors to canoe or fish in a peaceful and scenic setting.

Park Hours

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

The park is open year-round for camping and day use.

Onondaga Cave hours

2021 Onondaga Cave tours

  • Onondaga Cave is currently closed for the off-season, and tours are not being offered.

2021 Cathedral Cave tours

  • Cathedral Cave is currently closed for the off-season, and tours are not being offered.

Visitor Center hours

Summer Hours (On-Season)

  • March – 9 a.m. to 5 p.m., Friday through Sunday
  • April through October – 9 a.m. to 5 p.m., daily

Winter Hours (Off-Season)

  • November through February – Closed

Store hours

Summer Hours (On-Season)

  • March - 9 a.m. to 5 p.m., Friday through Sunday
  • April through October - 9 a.m. to 5 p.m., daily

Winter Hours (Off-Season)

  • November through February - Closed

Park Office hours

8 a.m. to 4 p.m., Monday through Friday, year-round