Caving in the Gouffre Berger – “Immersion” – In the footsteps of Fernand Petzl
Team Petzl retraces the steps of the first explorers (Joe Berger, Fernand Petzl, Jean Lavigne, Georges Garby, Pierre Chevalier…). Thanks […]
Team Petzl retraces the steps of the first explorers (Joe Berger, Fernand Petzl, Jean Lavigne, Georges Garby, Pierre Chevalier…). Thanks […]