索姆河
The River Somme is canalised, with sea locks at the eastern end of the town. From Saint-Valery-sur-Somme to Abbeville, the Canal de la Somme has been completely straightened, after which it follows a winding course to Amiens and beyond. Although no longer a busy commercial waterway, it gives an attractive and calm introduction to the French canals and the greater European canal network, thereby avoiding the busy ferry ports of Calais and Dunkirk.