Parc du Marquenterre: an immersion in nature at the heart of the Somme Bay

Located in the heart of the Somme Bay Nature Reserve, the Parc du Marquenterre is a must-visit destination for nature lovers, photographers, and birdwatchers. Covering more than 200 hectares of dunes, marshes, and pine forests, it offers an exceptional refuge for thousands of migratory birds.

Unique biodiversity

The Parc du Marquenterre is one of the most renowned sites in Europe for birdwatching. More than 360 species have been recorded here, including rare ones such as the Eurasian spoonbill, pied avocet, and stork. Depending on the season, you can witness fascinating scenes: nesting, collective take-offs, or spectacular migratory stopovers.

A visit for everyone

The park offers three marked trails (ranging from 2 to 6 km), dotted with 13 observation hides discreetly integrated into the landscape. Expert nature guides are also available to share their knowledge and answer questions. Whether you are a curious beginner or a passionate birder, every walk becomes a true sensory adventure.

Why visit?

The Parc du Marquenterre is much more than a nature reserve: it is a place of discovery, contemplation, and awareness of the richness of our natural heritage. A visit appeals equally to families and enthusiasts, leaving a lasting impression thanks to the stunning landscapes of the Somme Bay.

A unique site between land and sea

Located at the southern tip of the Somme Bay, in the commune of Cayeux-sur-Mer, the Pointe du Hourdel is a natural landmark of the Picardy coast. Here, pebbles shaped by the sea, sandbanks, and vast horizons create a changing spectacle with the tides. It is a favorite spot for nature lovers, photographers, and anyone seeking wide open spaces.

What makes Pointe du Hourdel so special

• A striking pebble landscape: made of over 95% silica, the pebbles come from the erosion of chalk cliffs and accumulate in impressive ridges along the shore.

• The seals of the bay: two species share the area, the harbor seal and the grey seal. At low tide, they rest on the sandbanks, easily visible from the seawall, the blockhouse, or the “Route Blanche.”

• A living shoreline: the ebb and flow of the tides constantly reshape the landscape, revealing salt marshes, mudflats, and dunes.

Activities and discoveries

• Walks and hikes: several routes allow you to explore the headland, including a loop starting from the Mollière or strolls along the Route Blanche.

• Wildlife observation: with binoculars in hand, you can spot seals, migratory birds, and unique salt-tolerant plants. Guided tours are also available for a deeper experience.

• Local fishing: the small harbor of Le Hourdel still thrives on shrimp fishing and coastal catches such as plaice.

A place steeped in history

The Hourdel lighthouse, rebuilt after World War II, stands at the very end of the headland and continues to guide sailors. The harbor landscape has been reshaped by silting and the natural movement of pebbles, which gradually changed access routes for boats.

Why visit Pointe du Hourdel?

Pointe du Hourdel is more than just a landscape—it’s a sensory experience. The wind, the shifting light, the cries of seabirds, and the presence of seals create a unique connection with nature. Whether you’re looking for a family outing, a peaceful break, or a photo adventure, this wild and preserved place fully deserves its reputation as a gem of the Somme Bay.

Hâble d’Ault is a protected wetland located on the Picardy coast in the Somme department, between the towns of Cayeux-sur-Mer, Woignarue, and Brutelles.
It is a classified ornithological and wildlife reserve and is part of the Natura 2000 network.

History and Geological Formation

• The word hâble comes from the old term havre, meaning port or refuge. In the Middle Ages, Hâble d’Ault was an important port connected to the sea by a channel.

• In the 18th century, a large pebble dike was built to protect the area from the sea, allowing formerly flooded lands to be cultivated.

• The pebble barrier formed by erosion of the cliffs in the Pays de Caux protects the hâble, but it is vulnerable to marine erosion and requires periodic maintenance.

Ecosystem and Biodiversity

Hâble d’Ault consists of wet meadows, marshes, gravelly grasslands, pebble embankments, and fragments of dunes. Ponds and reed beds provide rich habitats for water birds.

Fauna

• Over 270 species of migratory birds have been recorded.

• Notable species: mute swans, greylag geese, various ducks, waders (including ringed plovers, little ringed plovers, avocets), and gulls.

• Amphibians present include the parsley frog and the natterjack toad.

Flora

• Plants adapted to wet and coastal habitats include Juncus compressus, bird’s-foot trefoil, sea kale, and horned poppy.

The bay, with its sweeping dunes and vibrant marshes, is a natural treasure. These landscapes not only offer stunning views but also play a crucial role in maintaining the region’s ecological balance.

Dunes: Nature’s Coastal Guardians

Shaped by wind and tides, dunes protect the shoreline from erosion. Their hardy vegetation—such as marram grass, fescues, and some endemic species—stabilizes the sand and provides habitats for wildlife, including rabbits, insects, and migratory birds.

Marshes: The Bay’s Green Lungs

Salt and freshwater marshes support remarkable biodiversity. These wetlands filter water, control flooding, and provide a safe refuge for hundreds of bird, fish, and amphibian species. Dawn bird songs and migratory bird flocks make marshes a top destination for nature observation.

Protecting Fragile Ecosystems

Dunes and marshes are delicate and highly sensitive to human activity. Responsible activities like walking on marked trails, cycling, and wildlife watching help preserve these areas. Local organizations actively work to protect and restore these invaluable ecosystems.

Le Crotoy: Charm and Nature on the Bay of Somme

Nestled in the heart of the Bay of Somme, Le Crotoy is a must-visit destination for nature lovers and those seeking tranquility. With its sandy beaches, picturesque harbor, and charming streets, this small coastal town captivates visitors with its authenticity and warm atmosphere.

Exploring Le Crotoy

Le Crotoy offers a variety of activities:

• Beach walks and marshland strolls to spot birds and seals.

• Bay excursions on foot or horseback to discover the region’s unique landscapes.

• Visits to the harbor and town center, featuring colorful houses and a lively local market.

Delicious Local Cuisine

Restaurants in Le Crotoy serve fresh seafood, including mussels, oysters, and local fish, perfect for enjoying on a terrace overlooking the bay. Don’t miss local specialties like the Bay of Somme macaroon.

Rich Heritage

Le Crotoy boasts a rich historical heritage, including:

• The Saint-Pierre Church, dating back to the 19th century.

• The Chemin de fer de la Baie de Somme, a scenic steam train connecting Le Crotoy to other picturesque villages.

Activities and Events

Throughout the year, Le Crotoy hosts cultural and festive events, such as sea festivals and art exhibitions, showcasing local creativity.

Le Crotoy is more than just a seaside town: it’s a place where nature, history, and gastronomy meet, offering an authentic and rejuvenating stay on the Picardy Coast.

Saint-Valery-sur-Somme: A Medieval Town in the Heart of the Bay of the Somme

Saint-Valery-sur-Somme is a charming medieval town located in the heart of the Bay of the Somme, in the Hauts-de-France region. Recognized as one of "The Most Beautiful Detours of France," it captivates visitors with its rich history, picturesque streets, and stunning panoramic views.

A Rich Historical Heritage

The upper town of Saint-Valery-sur-Somme reveals remarkable architectural landmarks:

• The ramparts and fortifications: including the Porte de Nevers and the Guillaume Towers, remnants of the medieval defenses.

• Saint-Martin Church: built with alternating layers of flint and limestone, featuring Gothic architecture with twin naves.

• The former abbey: founded in the 7th century by Saint Valery, it is the oldest in the Amiens diocese.

• The Mariners’ Chapel: located on the heights of Cap Hornu, dedicated to the protection of local fishermen.

Strolling Through the Streets and Along the Port

The Courtgain district, with its cobbled streets and colorful houses, offers an authentic medieval atmosphere. The marina and surrounding quays provide breathtaking views of the bay.

Events and Culture

Saint-Valery-sur-Somme hosts various events throughout the year, such as the Valerican Trophies, which honor individuals contributing to the town’s vitality.

Saint-Valery-sur-Somme is an ideal destination for history lovers, nature enthusiasts, and those seeking a peaceful getaway. Whether you are passionate about medieval architecture, enjoy seaside walks, or want to explore local culture, this town has much to offer.

Cayeux-sur-Mer: The Gem of the Picardy Coast

Located in the Somme department in Hauts-de-France, Cayeux-sur-Mer is a must-visit destination for nature lovers and seaside enthusiasts. With its wide sandy beaches, colorful beach cabins on stilts, and seaside promenade, this charming coastal town attracts visitors year-round.

Accommodation and Cuisine

Cayeux-sur-Mer offers a range of accommodations, from family-friendly campsites to charming seaside hotels. Don’t miss the local cuisine, including fresh seafood, mussels in white wine, and desserts made with local apples and chicory.

Why Visit Cayeux-sur-Mer?

With its authentic charm, natural heritage, and variety of activities, Cayeux-sur-Mer is the perfect destination for a family trip, romantic getaway, or friends’ holiday. Enjoy the calm, fresh sea air, and the stunning landscapes of the Baie de Somme, one of France’s most beautiful natural sites.

Located in northern France, on the stunning Opal Coast, Mers-les-Bains is a charming seaside town known for its quaint architecture, dramatic cliffs, and authentic atmosphere. Together with Le Tréport and Eu, it forms a must-visit trio offering a unique blend of sea, nature, and heritage.

Beaches and Water Activities

Mers-les-Bains boasts a sandy beach with colorful cabins, perfect for families, sunbathers, and water sports enthusiasts. Activities like sand yachting and windsurfing are popular, while the cliffs provide breathtaking spots for photography and hiking.

Architecture and Heritage

The town is famous for its Belle Époque houses, featuring ornate facades, pastel colors, and charming bay windows. Walking through the streets is like stepping back in time to admire a unique architectural heritage in France.

Nature and Leisure

Nature lovers can explore the cliffs of Le Tréport or take scenic coastal walks offering stunning views of the English Channel. Throughout the year, the town also hosts cultural events and festivals, giving visitors a taste of local life.

Local Cuisine

Don’t miss the chance to enjoy fresh seafood, traditional Norman dishes, and local pastries at the many cafés and restaurants along the seafront.

The Baie de Somme, ranked among the most beautiful bays in the world, attracts visitors looking for nature, relaxation, and authenticity. But where should you stay to make the most of your trip? Here’s a practical guide to help you choose the right accommodation.

Saint-Valery-sur-Somme: The Must-See

A charming medieval town, Saint-Valery-sur-Somme is the beating heart of the bay. Its flowered streets, ramparts, and breathtaking views win visitors over. Here you’ll find:

• Boutique hotels with bay views,

• Traditional bed and breakfasts,

• Holiday rentals ideal for families.

Le Crotoy: Beachside and Authentic

Facing the bay, Le Crotoy charms visitors with its lively fishing port and south-facing beach. It’s also the perfect base to explore the Marquenterre Nature Reserve. Travelers enjoy:

• Seafront hotels,

• Comfortable gîtes,

• Family-friendly campsites.

Cayeux-sur-Mer and Ault: Cliffs and Colorful Cabins

For a peaceful stay away from the crowds, head to Cayeux-sur-Mer or Ault. These towns offer a different scenery with long pebble beaches or dramatic cliffs. Accommodation options include:

• Intimate guesthouses,

• Affordable holiday rentals,

• A few campsites near the sea.

Inland Villages: Authentic and Quiet

If you prefer the charm of the countryside, stay in one of the surrounding villages such as Rue, Noyelles-sur-Mer, or Saint-Quentin-en-Tourmont. There you’ll find:

• Many self-catering gîtes,

• Welcoming bed and breakfasts,

• Prices often lower than on the coast.

Which Type of Accommodation to Choose?

• Hotels: comfort and services, ideal for short stays.

• Bed and breakfasts: local hospitality and authentic atmosphere.

• Holiday rentals and gîtes: full independence, perfect for families or groups.

• Campsites and unusual stays: closer to nature, often budget-friendly.

In Summary

For a lively stay, choose Saint-Valery-sur-Somme or Le Crotoy. For peace and wild landscapes, opt for Cayeux, Ault, or the inland villages. Wherever you stay, the Baie de Somme guarantees a unique experience shaped by the rhythm of the tides.

• By Car
  Driving is the most convenient way to explore the bay at your own pace. It allows you to visit several villages in one day and easily reach remote natural sites. Be prepared to spend a little extra time finding parking in towns and tourist areas.

• Tourist Train
  The Chemin de Fer de la Baie de Somme connects Saint-Valery-sur-Somme, Le Crotoy, and Noyelles-sur-Mer. This historic train offers a unique way to discover the region while enjoying stunning views of the bay.

• By Bike
  The area has many cycling paths, including the Vélomaritime, which allow you to explore villages and the coastline. Cycling is perfect for combining outdoor activity, eco-tourism, and wildlife observation.

• On Foot
  The region is ideal for hiking and guided walks. Trails along the salt marshes, dunes, and beaches offer excellent opportunities to see birds and seals while discovering charming villages.

• Public Transport
  Local buses connect the main villages and tourist sites. Taxis are available to reach less accessible areas if you prefer not to drive.

The Baie de Somme can be explored year-round, but each season offers a unique experience. The best time to visit depends on whether you’re seeking wildlife, photography, tranquility, or outdoor activities.

Spring (March to May)

Spring is perfect for witnessing nature waking up: migratory birds start returning, seals become more visible, and wildflowers color the salt marshes. Temperatures are mild and crowds are still small.

Summer (June to August)

Summer is the liveliest season. Villages are bustling, beaches are inviting, and tourist activities are abundant. Ideal for cycling, kayaking, and enjoying sunny days. Expect larger crowds, especially in July and August.

Autumn (September to November)

Autumn brings stunning, ever-changing landscapes, with warm tones and dramatic skies. This season is perfect for photography, hiking, and observing migratory birds passing through the bay.

Winter (December to February)

Winter is the quietest time to visit. You can enjoy the bay almost alone, in a peaceful and authentic atmosphere. Temperatures are cooler, but it’s perfect for seal-watching and enjoying wild, tranquil landscapes.

In Summary

• Spring: nature awakens, tranquility, birds and seals.

• Summer: lively villages, beaches, outdoor activities, more visitors.

• Autumn: spectacular colors, photography, migratory birds.

• Winter: calm, wild landscapes, seal observation.

No matter when you visit, the Baie de Somme always offers a unique and memorable experience.