FR-86. La Fenêtre (The Window) is located on Vallon de la Fenêtre on Puget massif of Les Calanques (Deep Narrow Creeks). This wonderful area is located on the side of Mediterranean Sea between the city of Marseille and the village of Cassis in Bouches-du-Rhône department of France. The arch has an estimated high of 8 meters. The Calanques, France's newest National Park is home to plunging sea cliffs, dramatic bays and natural arches.