Into the Lost Crystal Caves

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.

Country:

Canada,

Mexico

Genre:

Documentary

Duration:

0 minutes

Year:

2010

Director:

Gary Lang

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Company:

National Geographic

Cast:

Narrator (voice)

Crew:

Writer

Director

Director

Editor

Director of Photography