Here's 23 Of The World's Most Insane Caves That You Can Explore

Caving (also known as spelunking or potholing) is the recreational pastime of exploring wild cave systems. For some of the caves listed in this article, you'll need climbing equipment and a buddy, for others, all you'll need is a pair of sneakers and a few dollars.
Here are 23 of the world's most insane caves that you can explore.