Karen C.
Yelp
I've visited the cavern twice, and it's my favorite of the four in the area. It's incredibly pretty, and the guides do a great job. If I could only visit one cavern in Castleton, it would be this one. Their souvenir shop is also, in my opinion, the best - they have adorable rock figurines for a very reasonable price, and my kids have loved the items I picked up for them. Their artisans are very talented.
Also, I highly recommend their online shop. I ordered a ring and pendent from them, and they were exactly as pictured, and came to the States much faster than I could have expected (normally everything I order from UK takes a month, but they arrived in a week and half). Seriously, they do a great job.