The Toulourenc, a torrential river on the north side of Mont Ventoux, has its source at the foot of the Château d'Aulan. The river has dug deep gorges in the rock of its bed, sometimes reaching 100 meters.
Starting from Buis, head towards the Col de Fontaube. The road climbs gently before straightening in the last km. Nice view of the Ventoux around a bend. At the pass, …
Listed natural site 3km from the village, accessible by a path or by the D546. Ideal place for picnicking, relaxing by the water and practicing climbing on the many routes. Pedestrian path, car park and dry toilets.