Explore hiking trails around Fontaine-sous-Jouy, Haute-Normandie. The best hike near Fontaine-sous-Jouy is L’Aiguillage via Chemin Jean Racine, a 7.4 mile oneway in Parc naturel régional de la Haute Vallée de Chevreuse. Fontaine-sous-Jouy has population 842.0.