Explore hiking trails around Saint-Martin-d'Ardèche, Languedoc-Roussillon. The best hike near Saint-Martin-d'Ardèche is La Châtaigneraie Loop via Les_Crottes, a 5.6 mile loop in Réserve naturelle des gorges de l'Ardèche. Saint-Martin-d'Ardèche has population 949.0.