Crystal Grottoes Caverns

19821 Shepherdstown Pike, Boonsboro, MD 21713 Get Directions
Phone: 301-432-6336
Stalagtites at Crystal Grottoes Caverns
Photo Credit: Crystal Grottoes Caverns
Maryland's only commercial underground caverns. Spectacular tour through brilliantly lit chambers takes 30 minutes.



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TripAdvisor® Traveler Reviews

TripAdvisor Reviews
TripAdvisor Traveler Rating Based on 136 reviews
TripAdvisor Reviews
October 9, 2018
My husband and I stopped in to explore the Crystal Grotto on a weekday. Tours are $20 per person and last about 35 minutes. Cash is preferred, but the owner will take a debit card. There is a...
TripAdvisor Reviews
September 25, 2018
Marianne M
We visited on a rainy day. It's a very "live" cave, and one corridor was flooded, so we weren't able to see it for safety reasons. The tour lasted just under 35 minutes, and was worth the $20 (cash...
TripAdvisor Reviews
September 24, 2018
Kate G
We were looking for something to do on a rainy day near Antietam and were more than pleasantly surprised by the grotto. The tour takes about 40 minutes and the cave is intimate so you can expect to...