||From Chamonix follow the valley road towards Argentiere. Just before the tunnel, turn right to le Lavancher. Go through the village to the end of the paved road and continue for another 500 meters along a good dirt track to the car park. Take the path leading to the Chapeau snack bar after 15 minutes, descend a small path to the right at a sharp bend in the trail. Down climb the climber's trail and follow it across the stream with metal steps and hand rail to the main climbing area known as the Oasis. There is a sign asking you to keep the place clean.