Into the Lost Crystal Caves

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.
Released: 2010-10-09
Genre: Documentary
Casts: Robin Ward,
Duration: N/A min
Country: Canada
Production: National Geographic

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