The mission of Onondaga Friends Association is to assist the State Park in providing more opportunities for interpretive education, and to increase public awareness of conservation and the biodiversity of our caves and the unique surrounding ecological environment that is Onondaga Cave State Park. This is accomplished through the offering of volunteer events and funding assistance for Park interpretive programs.


2025 Events

Off-Trail Cathedral Cave Tours

Onondaga Cave Photo Tours

Hot August Night ~ Cool Cave Music

Cathedral Cave Night Tours

Monthly volunteer meet-ups

Visit the trails, gift shop, daily cave tours, Dark 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 and Volunteer!

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

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

You can also become a helictite, cave frog or even a bat by giving here!  Your membership helps to give back to the larger community by bringing interpretive services to those who visit 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