Explore hiking trails around Nanteuil-sur-Marne, Île-de-France. The best hike near Nanteuil-sur-Marne is Carrefour du Portail Loop via Route Toudouze, a 3.0 mile loop in Parc naturel régional Oise-Pays de France. Nanteuil-sur-Marne has population 420.0.