In the Ligurian Alps, the area of Mongioie presents the most extensive karst complex in Piedmont, with a probable development of several tens of kilometers. The famous Vene Cave, which represents the underground collector of this powerful system, is easy and beautiful.

It can be divided into five parts, the first two of which can be visited with normal caving equipment, while the others require cave diving equipment due to the presence of three siphons. It is possible to organize a whole day immersed in the nature starting from Mongioie Refuge for an excursion to the cave.