Cave Diving Is Like Exploring A Dark Underworld

Video: Here's some chillingly beautiful shots showing what it's like to cave dive the 'El Toh' cave in Yucatan, Mexico. It's a completely different world down there. When you're inside the cave with water all around you, it looks a lot like being in an underworld you're not supposed to see. Some parts are haunting and other areas look alien, but almost all of it is just so damn cool.