Sometimes it can seem as though everything has been done for outdoor enthusiasts—every trail has been traveled, every peak has been climbed, and now you’re thinking about taking up an indoor pastime like knitting. But wait! Now might be a good moment to think about going underground rather than climbing mountains.
There are literally endless underground tunnels accessible for you to enjoy, assuming you’ve defeated your fear of darkness and your claustrophobia. There are approximately 45,000 caverns in the continental US alone, including the largest cave system on earth. We’ve chosen some of the most intriguing caves in America, many of which are just waiting to be discovered. Do not watch “The Descent” prior to going spelunking. Have a great time!