Hello, I work at the Ohio Caverns. We don't open until 10 so don't show up early because the park will not be open yet. This time of year we run tours approximately every 30 minutes. Sometimes we have groups with reservations scheduled so that can delay start times for people just walking in. Also, we do limit tour size so if we fill up a tour then we move to the next time. So that would be another reason you may need to wait a little while. Thanks for your question.
They run tours every little bit, you should be fine just showing up. That's what I did.
No need to schedule beforehand and no need to get there earlier.
Yeah just show up...just know how often they do tours depends on how busy it is. So if its nit super busy they may not run as often
Just show up
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