Gouffre Berger

From 1953 to 1963, it was regarded as the deepest cave in the world at −1,122 metres (−3,681 ft), relinquishing this title to the previous contender, Pierre Saint Martin, in 1964, after further exploration.

During a storm or heavy rain, the Gouffre Berger can become a dangerous trap and the water levels rise very quickly.

In 1996, Englishwoman Nicola Perrin (née Dollimore) and Hungarian Istvan Torda died due to violent flooding in the cave.

[4][5] The water that flows through the cave has been traced to re-appear in the flooded sections of the Cuves de Sassenage [fr].

[9] In 2014, attempts to join by siphons continued and an eleventh entrance, which communicates with the Fromagère, was created in September 2016; this is the "goufre Delta 35"[10] During the year 2022 a new network named "the Sardine Star", located at the level of the large waterfall of 27 metres, is being explored.

Side profile map of gouffre Berger in 2022.