4.2
(2222)
18,616
hikers
16
hikes
Dog friendly hiking trails around Réserve naturelle de la baie de Somme traverse a diverse estuarine environment where the Somme River meets the English Channel. The region features extensive mudflats, salt marshes, and significant dune systems, constantly shaped by tides. Chalk cliffs provide dramatic coastal scenery, while diverse wetlands support rich biodiversity. The landscape offers varied terrain suitable for different fitness levels.
Last updated: June 28, 2026
4.8
(5)
81
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
34
hikers
3.91km
01:00
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.7
(3)
21
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
3.0
(1)
27
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(31)
422
hikers
6.07km
01:34
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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It remains a strange feeling to come across traces so long after the war.
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The traces of the Second World War are still omnipresent, even after 80 years.
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At the crossroads of dunes, marshes, and pine forests, the Marquenterre Park is a 260-hectare natural sanctuary, in the heart of the Baie de Somme. 🕊Here, hundreds of species of migratory birds stop over — and you can observe them from thirteen observation huts spread along an immersive six-kilometer route (with shorter options). 🔎 Whether visiting freely or on a guided tour, passionate naturalist guides share their knowledge with you, each season. 📸 The park also offers themed walks, photo and ornithology workshops to deepen the experience. 🚲 Good to know for cyclists: - Easy access via cycle paths (Baie de Somme, Le Crotoy…) - On-site bike parking, catering, nature shop/bookstore - Binoculars recommended (available for rent on site) 👉 A must-see for lovers of wild nature and wide open spaces.
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Hourdel Lighthouse is a lighthouse on the common Cayeux-sur-Mer, it is built on the south side of the Bay of Somme, at the end of the point of Hourdel.
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Le Hourdel is a picturesque place with a view of the beautiful Baie de Somme, Le Crotoy and the sandbanks where the seals warmed themselves in the sun. At least at low tide.
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The bunker looks bizarre. Unfortunately it was high tide and no seals were to be seen
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There are 14 dog-friendly hiking trails in Réserve naturelle de la baie de Somme featured in this guide. These routes cater to various fitness levels, ensuring there's something for every dog and owner.
The Réserve naturelle de la baie de Somme offers a diverse range of landscapes for you and your dog to explore. You'll find extensive mudflats, salt marshes, and significant dune systems, particularly around the Marquenterre Park. The coastline also features impressive chalk cliffs, long shingle beaches, and diverse wetlands, providing varied scenery for your walks.
Yes, there are 9 easy dog-friendly trails in the area. A great option for a relaxed stroll is the Blockhaus du Hourdel – Le Hourdel Lighthouse loop from Le Hourdel, which is just under 3 km long and offers gentle terrain. Another easy choice is the Le Phare – Le Hourdel Lighthouse loop from Le Hourdel, spanning about 5.3 km.
Absolutely! Many of the dog-friendly routes in the Baie de Somme are circular, allowing you to start and end at the same point. For example, the Hiking loop from Saint-Quentin-en-Tourmont is an easy 6 km circular trail, perfect for a pleasant outing with your dog.
The dog-friendly trails in Réserve naturelle de la baie de Somme are highly regarded by the komoot community, with an average rating of 4.3 out of 5 stars from over 960 reviews. Hikers often praise the beautiful coastal views, the tranquility of the natural environment, and the well-maintained paths suitable for dogs.
Yes, several highlights are accessible with your dog. You can enjoy the expansive views of the Somme Bay and discover the Panoramic view of Marquenterre Park. The Marquenterre Park itself is a significant natural area, though specific dog access rules may apply within the ornithological reserve sections. Always check local signage.
For those seeking a longer adventure, there are 5 moderate dog-friendly trails. The Park – Plage du Marquenterre loop from Saint-Quentin-en-Tourmont is a moderate 14.1 km route that takes you through varied terrain, offering a good workout for both you and your canine companion.
The Baie de Somme is renowned for its rich biodiversity. While hiking with your dog, you might spot various bird species, especially around the Marquenterre Park and its Observatory. The area is also home to France's largest seal colony, particularly visible on the sandbanks near Le Hourdel. Remember to keep your dog on a leash and maintain a respectful distance from wildlife.
While some areas might have limited public transport options, accessing many trailheads in the Réserve naturelle de la baie de Somme, especially with a dog, is often easiest by car. We recommend checking local bus or train services for specific routes and their pet policies before planning your trip.
When hiking with your dog in the Baie de Somme, it's crucial to be aware of the tidal nature of the estuary. Always keep your dog on a leash, especially near wildlife, livestock, or sensitive natural areas like the Marquenterre Park. Carry enough water for both of you, and be mindful of the weather, as conditions can change quickly near the coast. Always clean up after your dog to preserve the natural beauty of the reserve.
For additional information on walking and cycling routes throughout the Baie de Somme, you can visit the official tourism website: tourisme-baiedesomme.fr. This resource can provide broader context for planning your outdoor adventures in the region.


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