Naïca: La grotte aux cristaux géants (2009)

Discovered by accident in one of the largest zinc and silver mines in northern Mexico, the Naica cave, filled with enormous selenite gypsum crystals, contains a highly toxic atmosphere. After years of preparation, a team of speleologists, biologists, and NASA members are exploring this natural wonder.

• Release Date: 2009-10-31
• Runtime: 1h 36min
• Production Company: Telecom Italia Media
• Production Country: France, Italy
• Director: Ruben Korenfeld