The Pierre Percée is a natural arch and is one of the seven wonders of Dauphiné. The rock is pierced with a 3m high hole which frames the panoramic view …
The Col de l'Allimas, located at 1,354 meters, offers two possible climbs. From Saint-Guillaume, you have to climb 13.6 kilometers at an average of 5.2 kilometers. From Saint-Michel-les-Portes, the gradient is 5.4% over 10 kilometers.