Lac d'Enghien is a freshwater lake in France.GeographyLac d'Enghien is in the Île-de-France region, approximately seven miles north of Paris. Administratively it belongs to the commune of Enghien-les-Bains in the department of Val-d'Oise. It is the department's largest body of water.FeaturesThe lake is roughly wide and long, with a circumference of and a total surface area of. The lake water is replenished by several small streams: the Corbon, Haras, d'Ermont, and d'Andilly, all of them under long.