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Boulogne-sur-Mer

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City
—°2811
Boulogne-sur-Mer (France)
ℹ️

Practical info — Boulogne-sur-Mer

🌤 Weather — 5 days

📍 Nearby

Sights nearby

💡 Tips

  • Visit the famous Nausicaá aquarium early in the morning or late afternoon to avoid the biggest crowds.
  • Parking inside the walled Upper Town (Ville Haute) is limited; leave your car in the lower town or designated lots outside the walls.
  • If you want the freshest seafood, head straight to the small stalls (aubettes) right at the fishing port in the morning.
  • The weather can change quickly on the Channel coast, so bring a windbreaker even in summer.

🍽 Food

🍽
Moules-frites

Enjoy fresh mussels and fries at a brasserie along the port or in the town center.

🍽
Le Welsh

A hearty northern dish of melted cheddar, beer, and ham over toast, popular in pubs around Place Dalton.

🍽
Kippers (Smoked Herring)

Buy traditional smoked herring directly from the fishermen's stalls at the harbor.

🛍 Shopping · 🧘 Quiet spots

🛍
Daily Fish Market

Browse the daily catch at the port's aubettes, offering an authentic local experience.

🛍
Vieux Boulogne Cheese

Ask for this strong local cheese at a traditional fromagerie in the city center.

🧘
The Walled City Ramparts

Walk along the fortified walls of the Upper Town for quiet views over the city and the sea.

🧘
Coastal path to Wimereux

Take a refreshing and peaceful walk along the cliffs facing the English Channel.

Highlights of 2026

2

Boulogne-sur-Mer is France's premier fishing port and possesses a rich maritime history that stretches back to Roman antiquity when it served as a major naval base. The city is geographically divided into an upper town, enclosed by well-preserved 13th-century ramparts, and a lower town that focuses on the bustling harbor and industrial activities. Within the upper town stands the Basilica of Notre-Dame, featuring a massive dome and one of the largest crypts in France, containing Roman foundations and medieval frescoes. The medieval castle, now a museum, houses significant collections of local archaeology and non-European art, highlighting the city's historical global connections. A major modern attraction is Nausicaá, the National Sea Centre, which is recognized as one of the largest aquariums in Europe and serves as a center for marine environmental education. Historically, the city was a strategic assembly point for potential invasions of Britain, most notably during the Napoleonic era. Today, Boulogne-sur-Mer effectively balances its status as a vital industrial hub for seafood processing with its role as a coastal tourist destination.

Best time to visit & climate

The most pleasant time to visit is Jul–Sep.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °C7679121517181714118
Rain mm836656415349576853859695

Live webcam – Boulogne-sur-Mer

See what it looks like near Boulogne-sur-Mer right now.

Boulogne-sur-Mer › North-west · 1.6 km · Open webcam on Windy · Webcams provided by Windy.com

Geography

Population
47,013
Coordinates
50.72600, 1.61300

Facts

  • The city has been home to Nausicaá, the National Sea Centre, since its opening in 1991.
  • The crypt of the Basilica of Notre-Dame is 128 meters long, making it one of the largest in France.
  • Boulogne-sur-Mer processes over 300,000 tons of seafood annually, leading the French industry.
  • The medieval ramparts were constructed between 1227 and 1231 by Count Philippe Hurepel.
  • The city's belfry was designated a UNESCO World Heritage site in 2005.
  • The dome of the Basilica of Notre-Dame reaches a height of 101 meters.

Explore nearby

Notable places around

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

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© OpenStreetMap contributors · OpenRouteService

Sights in the town Boulogne-sur-Mer (8)

Nausicaá

Europe's largest aquarium featuring massive tanks with sharks and oceanic marine life.

Basilica of Notre-Dame

A 19th-century landmark known for its massive dome and extensive Romanesque crypt.

Château-Musée

A 13th-century castle housing the municipal museum with fine arts and ethnography.

Belfry of Boulogne

A UNESCO World Heritage site, this 12th-century tower stands next to the town hall.

Column of the Grande Armée

A 50-meter monument dedicated to Napoleon, located in a park outside the city center.

Town Hall

Built in 1734, this elegant building features a classic brick and limestone facade.

Casa San Martín

The house where the Argentine liberator José de San Martín lived until his death in 1850.

🕒 Feb-Dec Tu-Sa 10:00-12:00,14:00-18:00🆓

Plage de Boulogne-sur-Mer🎡 recreation

Plage de Boulogne-sur-Mer is a beach in Boulogne-sur-Mer.

Frequently asked questions

What is Nausicaá?
Nausicaá is the largest aquarium in Europe and a national center for marine culture.
Does Boulogne have an old town?
Yes, the fortified upper town (Vieille Ville) features 13th-century walls and an impressive basilica.
Is Boulogne an important port?
It is France's leading fishing port, renowned for its fresh catch and seafood processing.
What can you see in the castle museum?
The museum inside the Château de Boulogne displays Egyptian art and unique Alaskan masks.
What is the surrounding area like?
The city is on the Opal Coast (Côte d'Opale), offering beautiful hiking trails along the cliffs.
Boulogne-sur-Mer: where is it located?
Boulogne-sur-Mer is located in Hauts-de-France, France.
Boulogne-sur-Mer: what is there to see?
Highlights include Nausicaá, Basilica of Notre-Dame, Château-Musée.
Boulogne-sur-Mer: when is the best time to visit?
The most pleasant time to visit is Jul, Sep.
Boulogne-sur-Mer: why is it worth visiting?
Boulogne-sur-Mer is France's premier fishing port and possesses a rich maritime history that stretches back to Roman antiquity when it served as a major naval base.
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