Gouffre Jean-Bernard, Alpine cave system in Samoëns, France
The cave network extends through 29,285 meters of passages and reaches a depth of 1,612 meters within the limestone formations of the French Alps.
Members of the French speleology group Groupe Vulcain discovered the first entrance in 1959 and named it after Jean Dupont and Bernard Raffy in 1963.
The Groupe Vulcain maintains detailed documentation of all explored sections and encourages international collaboration for ongoing cave system research.
Access to lower sections is restricted to January and February due to flooding risks, while proper equipment and spelunking experience are required for exploration.
Thirteen separate entrances lead into this cave system, with the highest point situated at 2,333 meters above sea level in the Alpine environment.
Location: Samoëns
GPS coordinates: 46.10472,6.79444
Latest update: June 5, 2025 09:28
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