 The Verdon is best known for its canyon, the Verdon Gorge.This limestone canyon, also called the 'Grand Canyon of Verdon', 20 kilometres in length and more than 300 metres deep, is a popular climbing and sight-seeing area.The Var River rises near the Col de la Cayolle (2,326 m/7,631 ft) in the Maritime Alps and flows generally southeast for into the Mediterranean between Nice and Saint-Laurent-du-Var.