Grotte de la Pontoise

Useful Information

Location: Villard-sur-Bienne, Jura. From La Rixouse follow road D437 2.5km towards Château-des-Prés. Turn left on forestry road.
Open: no restrictions
Fee: free
Classification: SpeleologyKarst cave
Light: none, bring own equipment.
Dimension: L=320m, VR=64m.
Guided tours: self guided visits. L=120m, W=20m, H=20m.
Address: Grotte de la Pontoise, 39 Villard-sur-Bienne.
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1990 developed by the Comité Départemental de Spéléologie du Jura.
26-MAY-1991 opened to the public.


Grotte de la Pontoise is not a show cave cave, but a mostly natural cave open to the public. The cave was developed as much as necessary to make it safe for visitors.

The cave was developed by the Comité Départemental de Spéléologie du Jura, in an agreement with the Parc Naturel du Haut-Jura. The cave is signposted. At the entrance a board with explainatory text was installed. In the six meters deep entrance pit, an iron ladder was installed. Inside the cave luminescent signs help the visitors to find their way.

The visit is not really difficult, but appropriate clothing, good walking shoes, and light (at least two lamps per person) are necessary.