The Étang de Montady, the "pond of Montady", is a drained "lagoon" or more accurately a former freshwater wetland that is popularly said to have been "constructed by the Visigoths" but was realised by monks during the second half of the 13th century, under authorization of the archbishop of Narbonne. The Étang de Montady is near Colombiers, midway between Béziers and Narbonne, in the western department of Hérault, in southern France.