Discovered in 1945, and classified 'scientific and picturesque site' by the Ministry
of Ecology, its rich calcite and aragonite concretions make it an exceptional site.
This series of galleries stands out in particular for the activity of its groundwater,
which floods the caves during high water, making them ever more beautiful.
Thin, fistulous, eccentric crystallisations take you to a fairy-like world filled with extraordinary shapes.
This 'Cathédral du Temps' (Cathedral of the Past) is further enhanced by a son et lumière show.
The visit starts with a film presentation. Special events for children are programmed during the school holidays or for birthday parties, so that they can better discover, understand, and be amazed by this wonderful site.
Things to see nearby: the Pont du Diable, one of the oldest medieval bridges in France. There is a good view from the special roadside viewing point.