A tunnel leads to the narrow pass (altitude 1,313m/4,308ft) dominated by the pyramid of Toulau rock. Once through the tunnel, take the time to stop because the view is truly stunning. You will have the impression of being on a stone bridge hanging between two immense voids. The view is breath-taking. To the south is Omblèze basin, leaning against the foothills of Diois; to the north beyond the wooded crater of Bouvante you can see the hills of Royans and Bas-Dauphine.