We did a ranger-guided tour of Jewel Cave National Monument in South Dakota.

Jenn getting her park passport stamp:

A map of the explored portions of the cave; it’s massive:

Exhibits:

Gift store:

Elevators to head down into the cave:

The jewels of Jewel Cave:

Lots of stairs:

Cave bacon:

Lots and lots of stairs:

Everyone needed to walk through a White Nose Syndrome mat when exiting: