Trassanel, FR
Grotta: sviluppo 75m, profondità 10m, nel massiccio Noire (montagne) / Versant méridional de la Montagne Noire audoise, hydrosystème du Minervois-Cabardès.
Listen to the audio guide for Émetteur (Grotte de l') Free on WIP — starts by itself when you arrive, even with the screen off