Team Petzl retraces the steps of the first explorers (Joe Berger, Fernand Petzl, Jean Lavigne, Georges Garby, Pierre Chevalier...). Thanks to extraordinary images from the film “Siphon-1122” (directed by Georges Marry in 1962 and produced by Jack Lesage) relive the intensity of the first descent in this now well-known, must see cave.

For optimal image quality, turn off the lights, set your display to 720p, click on full-screen, turn up the volume, and step back 1 meter ;-) Having issues playing the video? Try here :

The abyss as seen by Phil Bence

It all started with caving!
 The underground world is exciting, fascinating and demanding, (...)