| NGC goes inside one of the greatest natural marvels on the planet - a giant crystal cave described as Superman's fortress, with magnificent crystals up to 36 feet long and weighing 55 tons. A team of experts venture into the cavern, enduring scorching-hot temperatures that could kill a human after just 15 minutes of exposure. They'll push the boundaries of physical limitation to explore a crevasse that could lead to another - and perhaps more spectacular - crystal cave. |
| Release Date: |
Oct 09, 2010 |
| Director: |
Gonzalo Infante Castañeda,
Gary Lang
|
| Writer: |
Gary Lang
|
| Genres: |
Documentary
|
| Keywords |
cavern,
crystal,
geology,
crystal cave,
nature documentary
|
| Production Companies |
National Geographic
|
| Box Office |
Revenue: $0
Budget: $0
|
| Updates |
Updated: Feb 03, 2025
Entered: May 14, 2024
|
