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Crystal Grottoes Caverns, Boonsboro

3.7
#1 of 8 in Things to do in Boonsboro
Cave · Nature / Park
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Folks, my name is Jerry Downs, and I am the third generation owner of the Crystal Grottoes. When I was 10 years old my grandfather Ralph Downs showed me how to run this business. When the caverns were discovered it was so spectacular it was said that if it were opened it would make money for 100 years. Well, get this. The caverns were discovered in 1920 and opened to the public in 1922. I am working on this website in 2010. For 88 years, ladies and gentlemen, the Crystal Grottoes, Maryland's natural caverns have been wowing customers and has been an ongoing concern ever since.

This natural phenomenon has more formations per square foot than any cave known to man. It is also the most naturally kept cave in the world. You are going to see this piece as it was developed back in the 1920's. Our tour guides will answer your educational, technical, historical and geological questions.

After the tour, we try hard to have an additional question and answer period to answer any questions that our guides did not know the answer to, or additional questions thought of after the fact. Every good question makes us a little sharper. No one on earth knows it all, but it sure is fun to talk caves all day!

And don't forget - its 54 degrees in the caves all year round, so it's cool in the summer, and warm in the winter!

See you underground at Crystal Grottoes!

-Jerry Downs
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Crystal Grottoes Caverns reviews

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TripAdvisor traveler rating
TripAdvisor traveler rating 4.0
171 reviews
Google
4.3
TripAdvisor
  • While visiting Frederick Md we were looking for something different to do. Found the only caverns in Maryland only 30 minutes away. An easy drive from Frederick. We were greeted by Debbie who... 
    While visiting Frederick Md we were looking for something different to do. Found the only caverns in Maryland only 30 minutes away. An easy drive from Frederick. We were greeted by Debbie who...  more »
  • Just loved it. Guide was informed, price a little high for this smaller cavern, compared to others down in Virginia, but I don't mind helping such a treasure stay open and running. Countryside... 
    Just loved it. Guide was informed, price a little high for this smaller cavern, compared to others down in Virginia, but I don't mind helping such a treasure stay open and running. Countryside...  more »
Google
  • Lovely Caverns! Perfect for the price & great tour guides (we had Jonathan & Mac). Stick around for a bit to talk with the staff and see the area- gorgeous on a nice day! Word of caution: it can be narrow in many places and has some spots with low ceilings to walk under. I had my toddler in a carrier & we just barely fit in some spots (as reference). We were fine with it but if you have issues with spaces like this then you may want to sit out the tour. We loved our cavern tour & highly recommend to everyone who comes into town!
  • Everyone working at Crystal Grotto was so friendly and knowledgeable. We went on a Friday in April and had just missed a tour group, but only waited 15-20 minutes for the next. The caverns were not very busy that afternoon and we were able to have a tour with just 2 other people. The care taken by the team to educate tourists and preserve the caverns is remarkable.

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