Explore hiking trails around Chantemerle-lès-Grignan, Rhône-Alpes. The best hike near Chantemerle-lès-Grignan is La Châtaigneraie Loop via Les_Crottes, a 5.6 mile loop in Réserve naturelle des gorges de l'Ardèche. Chantemerle-lès-Grignan has population 241.0.