There are extreme sports and then there is cave diving, the most extreme activity a person can engage in without leaving Earth. Cave divers stay underwater swimming miles into – that’s right – caves, where no human has ever been before. It’s pretty cool. Wade in with Josh and Chuck in this classic episode.

The Hindenburg Disaster
50:02

Short Stuff: Did Tippi Hedron start the Vietnamese manicure industry?
12:58

Humanists, the Happy Heathens
50:01