The ramparts of Montreuil-Sur-Mer.
This small town, south of Boulogne, has the advantage that there is something spectacular to see and at the same time is only 20 Km distant from the sea with Le Touquet-Paris-Plage.
The ramparts "à la Vauban" and the citadel dominate with their 40 m height the surrounding country offering nice perspectives on a green landscape.
It is difficult to imagine that the river Canche was accessible to seagoing vessels and that Montreuil was in the 11th and 12th c. the only royal port of the Capétien kingdom of France.
The streets are picturesque. The architectural style is that of the North of France rather close to what we are used to see in the southern part of Belgium.
English is the second spoken language in Montreuil. Many British travelers stop here before joining Calais.