Boulogne-sur-Mer, France

Boulogne began as the Roman port of Gesoriacum (later Bononia), the main embarkation point for the Roman invasion of Britain. Napoleon assembled his Grande Armée here in 1803–1805 to prepare an invasion of England that never came — the column on the hill above the city commemorates the camp. The medieval walled upper town was built by the Counts of Boulogne in the 13th century. The city was heavily bombed in WWII and rebuilt. Today it is France's largest fishing port by volume and the first French town many British visitors encounter after crossing the Channel.

Boulogne is France's fishing capital — the seafood here is as fresh as it gets. The Quai Gambetta restaurants serve the morning catch: sole, turbot, bar (sea bass), crevettes grises, and the obligatory moules-frites. The fish market behind the port sells directly to the public. Welsh rarebit (known locally as 'le welsh') is a Boulonnais speciality — a pub dish of melted cheddar and beer over toast, inherited from centuries of Channel trade with England. Festivals: Fête de la Mer (July — blessing of the fleet), Festival de la Côte d'Opale (summer — music and theatre). Museums: Nausicaá (marine centre), Château-Musée (archaeology and fine arts), Maison de la Beurière (fishermen's heritage house).

Safety: Boulogne is safe. The upper town is quiet at night. Standard precautions around the port area after dark. Emergency: 112. Language: French. Some English spoken in Nausicaá and tourist facilities, given the proximity to England. The local Ch'ti dialect is occasionally heard. Currency: EUR. Cards accepted at most businesses. Cash useful at the fish market and smaller establishments.

Boulogne-sur-Mer sits on the Opal Coast (Côte d'Opale) — the stretch of northern French coastline between Calais and the Somme estuary. The upper town (Haute Ville) is a compact medieval gem: a complete ring of 13th-century ramparts encloses a cobblestoned quarter with the Basilica of Notre-Dame, the castle-museum (one of the oldest fortified enclosures in northern France), and views over the port and the English Channel. The lower town centres on the fishing port and the Quai Gambetta — the heart of Boulogne's seafood culture, with fish restaurants and stalls selling the morning catch directly off the boats. Nausicaá, Europe's largest aquarium and marine centre, is the city's headline attraction: a massive complex on the seafront with open-ocean tanks, manta rays, hammerhead sharks and a focus on marine conservation. Beyond the city, the Côte d'Opale stretches in both directions: the Cap Gris-Nez and Cap Blanc-Nez headlands (where you can see the English coast on clear days), the vast beach at Wimereux, and the dunes of Slack. Boulogne is easily reached from England via the Eurotunnel (30 km north to Calais) or ferry to Calais, making it one of the first French towns British visitors encounter — and one of the most rewarding.