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France

Réserve naturelle de la baie de Somme

Routes
Hikes
France

Réserve naturelle de la baie de Somme

The best walks and hikes around Réserve naturelle de la baie de Somme

4.2

(1994)

16,579

hikers

11

hikes

Hiking trails around Réserve naturelle de la baie de Somme traverse a dynamic estuarine environment where the River Somme meets the English Channel. The landscape features a mosaic of ecosystems, including vast tidal flats, salt meadows, and significant dune systems. Hikers can explore expansive marshes, which range from dry to humid and fresh to brackish. This protected area offers diverse terrain for outdoor activities.

Best hiking trails around Réserve naturelle de la baie de Somme

  • The most popular hiking route is Les Crocs - Around Marquenterre Trail, a 6.2 miles (10.0 km) trail that takes 2 hours 32 minutes to complete. This moderate route explores the diverse habitats surrounding the Parc du Marquenterre.
  • Another top favourite among local hikers is Park – Diverse vogels loop from Saint-Quentin-en-Tourmont, an easy 3.1 miles (5.0 km) path. This trail offers opportunities for birdwatching within a park setting.
  • Local hikers also love the Somme Bay – Le Crotoy Beach loop from Pointe à Guille, a 5.0 miles (8.0 km) trail leading through coastal areas and along the beach, often completed in about 2 hours 2 minutes.
  • Hiking around Réserve naturelle de la baie de Somme is defined by tidal flats, salt meadows, and dune systems. The network offers options for different ability levels, from easy walks to more challenging routes.
  • The routes in Réserve naturelle de la baie de Somme are highly rated by the komoot community with an average score of 4.3 stars from over 950 reviews. More than 10,000 hikers have used komoot to explore Réserve naturelle de la baie de Somme's varied terrain.

Last updated: May 11, 2026

#1.

Les Crocs - Around Marquenterre Trail

10.0km

02:32

20m

20m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

4.8

(101)

1,316

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Popular around Réserve naturelle de la baie de Somme

Cycling around Réserve naturelle de la baie de Somme

Running Trails around Réserve naturelle de la baie de Somme

Road Cycling Routes around Réserve naturelle de la baie de Somme

MTB Trails around Réserve naturelle de la baie de Somme

Gravel biking around Réserve naturelle de la baie de Somme

Tips from the Community

Christian
March 22, 2026, Kormorane

A large colony of cormorants in the nature reserve.

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Karl
October 3, 2025, Sentier du littoral

Beautiful hiking trail behind the dunes

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You may walk with your dog to the beach but not further towards Le Crotoy. Protected nature reserve.

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Stork not very afraid of our presence seen on the side of the road.

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I recommend this hike with its magnificent landscapes!

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Magnificent landscapes but walking is more difficult in the sand...

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Beautiful, very pleasant cycle paths.

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Deki Fourcin
January 15, 2024, Baie de Somme

Magnificent landscapes with breathtaking ecological richness. Here you can observe many species of salt-loving plants, migratory birds, and the largest colony of seals in France.

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Frequently Asked Questions

How many hiking trails are available in Réserve naturelle de la baie de Somme?

There are 11 hiking trails available in the Réserve naturelle de la baie de Somme, catering to various skill levels. You'll find a mix of easy, moderate, and a few more challenging routes to explore the diverse landscapes of the bay.

What kind of terrain can I expect on hikes in Réserve naturelle de la baie de Somme?

The Réserve naturelle de la baie de Somme offers a unique and dynamic estuarine environment. Hikers can expect to traverse a mosaic of landscapes, including vast tidal flats, salt meadows, significant dune systems, and expansive marshes that range from dry to humid and fresh to brackish. The trails often provide views of the English Channel and the River Somme.

Are there easy hiking options suitable for beginners or families in the Réserve naturelle de la baie de Somme?

Yes, the reserve offers several easy hiking options perfect for beginners or families. Out of the 11 available routes, 6 are classified as easy. An example is the Park – Diverse vogels loop from Saint-Quentin-en-Tourmont, an easy 3.1-mile (5.0 km) path ideal for birdwatching within a park setting.

What are some notable natural features or attractions to see while hiking in the bay?

The bay is rich in natural features and wildlife. You can observe France's largest colony of harbor and grey seals basking on sandbanks, particularly near Le Hourdel. The Marquenterre Park is a premier ornithological reserve, offering exceptional birdwatching opportunities. Hikers can also enjoy the unique salt meadows, vast tidal flats, and impressive dune systems. Don't miss the Panoramic view of Marquenterre Park or the Marquenterre Park Observatory for stunning vistas.

Are there any circular walks available in Réserve naturelle de la baie de Somme?

Yes, there are several circular walks available. For instance, the Somme Bay – Le Crotoy Beach loop from Pointe à Guille is a 5.0-mile (8.0 km) circular trail that takes you through coastal areas and along the beach. Another option is the Somme Bay – Marquenterre Park loop from Parc du Marquenterre, an easy 3.5-mile (5.7 km) route.

What is the best time of year to go hiking in Réserve naturelle de la baie de Somme?

The Réserve naturelle de la baie de Somme is beautiful year-round, but spring and autumn are particularly popular. These seasons offer pleasant temperatures for hiking and are prime times for bird migration, making them ideal for wildlife observation. Summer can also be great, especially for coastal walks, but be mindful of tides and potentially larger crowds. Winter offers a stark, wild beauty and unique birdwatching opportunities.

Can I bring my dog on the hiking trails in Réserve naturelle de la baie de Somme?

While the Réserve naturelle de la baie de Somme is a protected area, some trails and areas may permit dogs, often on a leash. It's always best to check specific regulations for each trail or section of the reserve before you go, as rules can vary, especially in sensitive wildlife habitats like the Parc du Marquenterre.

Is public transport available to access hiking trails in the Réserve naturelle de la baie de Somme?

Public transport options to access hiking trails in the Réserve naturelle de la baie de Somme can be limited, especially for reaching specific trailheads within the reserve. While some coastal towns like Saint-Valery-sur-Somme and Le Crotoy are accessible by regional transport, reaching more remote starting points for hikes might require a car. It's advisable to research local bus services or consider carpooling for better access.

What do other hikers enjoy most about hiking in Réserve naturelle de la baie de Somme?

The area is highly rated by the komoot community, with an average score of 4.3 stars from over 950 reviews. Reviewers often praise the diverse landscapes, the abundance of wildlife (especially birds and seals), and the sense of wild natural beauty. Many appreciate the well-maintained paths and the opportunities for peaceful coastal and marshland walks.

Are there any cafes or places to eat near the hiking trails?

Yes, charming coastal towns like Saint-Valery-sur-Somme and Le Crotoy, which are often starting points or pass-throughs for hikes, offer a variety of cafes, restaurants, and local culinary experiences. You can find places to refuel and enjoy local specialties before or after your hike. Some visitor centers within the reserve, such as the Maison de la Baie de Somme, may also have facilities or nearby options.

Are there any permits required for hiking in the Réserve naturelle de la baie de Somme?

Generally, no specific permits are required for hiking on the designated public trails within the Réserve naturelle de la baie de Somme. However, certain areas, especially within the Parc du Marquenterre or for guided tours, might have entrance fees or specific access rules. Always respect signage and stay on marked paths to protect the fragile ecosystem.

What is a good moderate hike to experience the diverse habitats of the bay?

For a moderate hike that explores the diverse habitats, consider the Les Crocs - Around Marquenterre Trail. This 6.2-mile (10.0 km) route takes approximately 2 hours 32 minutes to complete and offers a great overview of the landscapes surrounding the Parc du Marquenterre.

Most popular routes around Réserve naturelle de la baie de Somme

Easy hikes around Réserve naturelle de la baie de Somme

Most popular attractions around Réserve naturelle de la baie de Somme

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