In the mood for a unique adventure in Maryland? Then check out this cave that belongs on your bucket list. You can take a tour of the Crystal Grottoes Caverns, which has a very unique claim to fame: it's home to more formations per square foot than any other cave in the world. Really! Read on for the details and bring the family -- this easy and surreal attraction is great for any age.

You'll find the cave along Shepherdstown Pike in Boonsboro, Maryland.

It's the only show cave in Maryland and was first discovered by accident in 1920 after a construction crew was drilling for gravel. It opened to the public in 1922, and it's one of the most unique things to do in Maryland.

Just be on the lookout for this big red sign...

You can't miss it!

...And this building, that's actually the entrance to the caverns.

Crystal Grottoes tours is locally owned and operated. They're now in their fourth generation, continuing their passion for showing others this unique cave.

The cost is $20 for adults and $10 for children. Keep in mind that this spot is cash-only. Come prepared!

Tours last anywhere from 30-45 minutes, and your knowledgeable guide will explain everything there is to know about how the cave was formed, all of the different rooms within the cave, and more.

The inside of the caverns are a constant 54 degrees year-round. Be sure to bring a jacket.

Along the tour you'll wind through tunnels...

...and marvel at tall walls that are full of natural formations.

In fact, the cave is home to more natural formations per square foot than any other cave known to man. Impressive!

Keep your eyes peeled for all of the little details.

Bring a camera, bring the family, and have fun walking through this unique natural wonder in Maryland.

For more information, visit the website. You can also follow the official Facebook page by clicking here.

For another unique Maryland adventure, consider checking out Glow In The Park. You can climb and fly through a forest canopy at this lit-up obstacle course!

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