The Onondaga Cave State Park invites visitors to descend down into the depths of caves and explore a world of fascinating wonder that includes active flowstones, dripping stalactites, and towering stalagmites that help to make the park’s cave a National Natural Landmark and help illustrate why the state of Missouri is sometimes referred to as “The Cave State.” Guests are able to join guided tours of the underground cave, as well as explore the Vilander Bluff Natural Area if they would rather stay above the surface, where they can experience panoramic views of the nearby Meramec River.

7556 Hwy. H, Leasburg, MO 65535, Phone: 573-245-6576

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