Discover the most magical spots to pitch your tent or park your rig on your next Onondaga Cave State Park adventure.
Find fun adventures above and below the ground at this Missouri park.
Onondaga Cave earns rave reviews for the grandness and beauty of the underground structures, which include a slow-flowing river running underneath giant stalactites and around massive stalagmites. Seasonal cave tours give you an up-close view. Above ground, the Meramec River runs through the park, providing an abundance of views and recreational opportunities. Hike the trails for expansive views, take a splash in one of the swimming holes, or grab your paddles for a journey down river. St. Louis is just over an hour east of the park, if you’re looking to add some urban adventures to your journeys.
If you mainly want to tour the cave, visiting between April 1 and October 31 is required since daily tours are offered. Plus, this is when you’ll find the best weather above ground. Spring can be chilly, with the warmest temperatures found in late summer. Fall is particularly scenic, as colors generally peak in October. Visiting during the off season is more serene; however, you may encounter freezing temperatures and limited services.