Debutant caving – Jura
There is a beautifully produced caving guide to the Western Swiss Jura, but it is rather expensive and provides a very dry description of the caves.
Gouffre des Chanceaux
I can only say: “don’t bother”. The first pitch leads to a cramped rift. There is supposed to be a passage to another pitch, leading to a room, but the passage had filled up in June 2022.