📜 Overview:
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.
🌏 Languages Available:
📆 Date Released:
2010-10-09
⌚ Running Time:
0 mins
⭐ Vote Average:
6.0
Beloved Cast
Narrator (voice)
Robin Ward
