La grotte des Huguenots (Huguenots Cave) is located on the side of the road D290 near the famous Pont d'Arc in Ardeche department of France. Because of its proximity of the road, this nice double arch is pretty much ignored and some tags can be found inside. It is located by red star on the IGN topographic map Top 25 number2939 west Gorges de l'Ardeche pleat B4.