Make time for this trip. On the hour, talented guides lead you below to see some amazing stalactite and stalagmite formations. In addition, this place offers the best (rare) helictites. You take a 50-minute tour and learn not only what these formations are, but are also guided to see all the natural art work that people recognize in these formations (fairies, bacon, a variety of Disney characters). Well-placed lighting means that you never get disoriented and it also backlights the formations for good photographic opportunities. Our guide, Nick, from TN, clearly loves his job which makes the tour that much more fun. As he is tall, he is very cognizant of the few tight spots and helps you navigate those head-clonkers without injury. We appreciated that he didn't turn off the lights (something that is often done in caverns.)
The parking area also includes quiet spots for a picnic. Nick assures us that you can get some great burgers in Volcano (also worth a brief visit).
It is important to note that the map included on the cavern advert is a bit misleading and you can get confused in the backcountry. Map it out carefully (our GPS couldn't find the place). Still, the area is beautiful so a few wrong turns were harmless. For those leaving Sutter Creek, the sign indicating a left to Volcano means right there - it looks like a small street, but gives you a clear route to the park.
Don't plan to bring food, drink or gum into this attraction.
If you own or manage Black Chasm Cavern, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.