Secrets of the Underground Season 2 Episode 6 Mystery of the Ice Cave 2017
4.3/10 by 3 users
A strange cave freezes in the summer and melts in the winter, and a massive sand dune swallows a small child in an instant. Rob Nelson and Stefan Burns use cutting-edge technology to investigate these mysteries of the natural world.
- Released: 2017-12-02
- Runtime: 60 minutes
- Genre: Reality, Documentary
- Stars:
- Director:
