The Somme Canal was built at the end of the 18th century to maintain commercial traffic on the river. The maritime canal, which flows into Saint-Valery-sur-Somme, is punctuated by many works of art. Locks, dams and swing bridges testify to technical progress from the 18th to the 20th century. During a guided walk, discover the history and heritage of the Somme canal. Meet at the footbridge leading to the towpath at the free parking at the entrance of Saint-Valery-sur-Somme.