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Published on Dec 23, 2011
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.