Embark on an extraordinary journey into the underground world of caves. Beneath our sunlit world lies an unknown universe of breathtaking caverns, treacherous passages and absolute darkness. Join a National Geographic expedition to document the splendours of the world's most exotic new cave for the first time. Relive the excitement of those cavers who, in 1986, first entered Lechuguilla, New Mexico. Marvel at the pristine beauty of gypsum chandeliers, gnarled calcite columns and jewel-like lakes. Then, join the 1972 expedition that stumbled upon a passage connecting the Mammoth and Flint Ridge cave systems, creating the longest cave system in the world. And relive the thrilling discoveries and heartbreaking tragedies of caving history.
Directed by Lionel Friedberg
Your score–
Not scoredImages
Cast
Related
The Godfather Family: A Look Inside
Louis Theroux: Twilight of the Porn Stars
4 Little Girls
Interstellar: Nolan's Odyssey
Making The Witcher
Behind the Planet of the Apes
Seven Up!
The Crystal Calls - Making The Dark Crystal: Age of Resistance
The Making of Star Wars
Explorer: The Last Tepui
180° South
Atlantis Rising
Chaos on the Bridge
Unknown Dimension: The Story of Paranormal Activity
Birth of the Living Dead
The Assassination of Jesse James: Death of an Outlaw