The mission of Onondaga Friends Association (OFA) is to assist the State Park in providing more opportunities for interpretive education, increasing public awareness of conservation and biodiversity of our caves, and to promote the unique ecological environment that is Onondaga Cave State Park. This is accomplished through the offering of events and interpretive programs.


2025 Events

Onondaga Cave Photo Tours

Cathedral Cave Night Tours

Hot August Night ~ Cool Cave Music

Off-Trail Cathedral Cave Tours

Monthly volunteer meet-ups

You can also visit the trails, gift shop, daily cave tours, Starry Sky events, and the campground programs!

Go to 2025 Events for more info!


Of all the paths you take in life, make sure a few of them are dirt.”

~ John Muir

Become an OFA Member & Volunteer!

OFA events are mostly volunteer-led. If you want to be part of this beautiful State Park, consider becoming an OFA Member and Volunteer! OFA helps Onondaga Cave State Park in part by sponsoring and co-sponsoring public and private events.

We appreciate volunteer help. If you want to help with our events and/or bring environmental education to the public, please contact us at onondagafriends@gmail.com.

If you would rather donate, you can become one a Member! You too can be a Helictite, Cave Frog, or a Bat by donating here! Your membership helps to give back to the community by bringing interpretive services to Onondaga Cave State Park!

Riley the Bat says, Thank You from all of us!


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Friends of Onondaga Cave State Park,

Onondaga Friends Association

P. O. Box 13, Leasburg, Missouri 65535

onondagafriends@gmail.com