Onondaga Cave State Park
Guided tours of two underground wonderlands: Onondaga and Cathedral caves. Gift shop, mining, sluice, campground, picnic area and hiking trails along the Meramec River.
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Park is a bit small but very nice. Centerpiece is the Onondaga Cave, besides there are 2 easy hikes.Full Review
We stopped in here on the way back to Meremac State Park after a day out. We just missed the last cave tour, which was all right since this was an unplanned stop anyway. We did get to check out the...Full Review