Discover an impressive geological fault nestled in the heart of the forest, offering a unique microclimate that keeps the heat in during the summer.
Located in a nature reserve and quiet zone, this area is subject to strict regulations. Dogs are strictly forbidden, even on a leash, to preserve the local wildlife. In addition, access is forbidden from December 15 to June 30 inclusive, to ensure the tranquility of sensitive species during this period.
Free access.
Office de Tourisme du Pays de Gex - 29/01/2026
www.paysdegex-montsjura.com
Report a problem
From 01/07 to 14/12.
Phone : 04 50 28 09 16
Email : contact@paysdegex-tourisme.com
Website : https://www.paysdegex-montsjura.com
No. Dogs not allowed, even on a leash.