A route along the east ridge of the Vercors, a long wall with a dolomitic appearance. Don't forget to look up!
Start from the bridge crossing the Gresse to the Gua. Follow the D8 to Saint-Barthélémy.
When you reach the village, turn right onto the D8b.
Continue to Prélenfrey then head for Col de l'Arzelier.
From 01/05 to 31/10.
Subject to favorable weather.