With a rich heritage deserving of its enviable classification as a « Town of Art and History », the old fortified town bears witness to this name in stone: a 12th century belfry, wonderful 13th century city walls, a fascinating castle-museum, an impressive cathedral and a medieval crypt.

Boulogne-sur-Mer is also the first fishing port in France, bringing together all types of port activities: a fleet of fishing boats, preparation, sale and distribution of fish, as well as a marina, now with extended and modernised facilities.

Its maritime importance is also confirmed by the National Sea-Life Centre, Nausicaa, located between the port and the beach.