A coastal river about forty kilometers long, the Saâne has its source in Val-de-Saâne, in the hamlet of Varvannes where the Saint-Sulpice fountain stands. It is joined at Gueures by the Vienne, a 15-kilometer river that originates her in Beauval-en-Caux, and ends its course by flowing into the English Channel between Quiberville-sur-Mer and Sainte-Marguerite-sur-Mer.
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All along the Terroir de Caux part of this itinerary, you will follow the Saâne valley