4.3
(3505)
25,840
hikers
554
hikes
Hiking in Parc Naturel Régional Baie De Somme Picardie Maritime offers a diverse range of landscapes, from nearly 70 kilometers of coastline featuring beaches, white cliffs, and dune systems, to extensive marshes and wetlands. Inland, the park encompasses dry valleys, bocage plateaus, and significant forest masses. This protected area provides varied terrain for outdoor activities, including coastal paths, marshland trails, and routes through picturesque villages.
Last updated: May 10, 2026
4.6
(134)
539
hikers
8.16km
02:19
120m
120m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.1
(97)
406
hikers
10.5km
02:39
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.5
(44)
166
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.4
(35)
138
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.3
(16)
179
hikers
8.46km
02:09
20m
30m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The traces of the Second World War are still omnipresent, even after 80 years.
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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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Nice Chapelle with the view on the Baye de la Somme
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From the chapel on the hill, there is a beautiful view of the bay and Le Grotoy.
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The Tours Guillaume, one of the city gates, also known as Porte Jeanne d'Arc or Porte du Haut in memory of Joan of Arc.
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Walk along the canal, enjoy the view from the benches
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There are over 570 hiking routes available in Parc Naturel Régional Baie De Somme Picardie Maritime, catering to various skill levels. This includes 299 easy, 257 moderate, and 17 difficult trails.
The region offers a diverse range of terrain. You'll find nearly 70 kilometers of coastline with beaches, white cliffs, and dune systems. Inland, there are extensive marshes, wetlands, dry valleys, bocage plateaus, and even significant forest masses. Trails can range from paved coastal paths to muddy marshland tracks.
The Parc Naturel Régional Baie De Somme Picardie Maritime is beautiful year-round. Spring and autumn are ideal for birdwatching due to migratory patterns. Summer offers pleasant weather for coastal walks, while winter can provide a unique, tranquil experience, especially in the marshlands. Always check local weather conditions before heading out.
Hikers can explore a variety of natural features and landmarks. You might encounter the dramatic White Route of the Bay of Somme, offering stunning coastal views, or the historic Le Hourdel Lighthouse. The area is also known for its extensive wetlands and the picturesque Port of Saint-Valery.
Yes, the Baie de Somme is an internationally recognized ornithological site, perfect for birdwatching, with over 300 species observed annually. You can also spot seals, particularly around Saint-Valery-sur-Somme and along the White Route of the Bay of Somme. Trails like the Le Hourdel Loop are known for marine wildlife spotting opportunities.
Yes, the park offers many easy trails suitable for families. These often include flat coastal paths or well-maintained routes through marshlands. For example, the Cap Hornu — loop from Saint-Valery-sur-Somme is an easy 7.1 km trail that leads through charming villages and offers superb bay views.
While many trails in the Parc Naturel Régional Baie De Somme Picardie Maritime are dog-friendly, it's important to keep dogs on a leash, especially in protected areas and near wildlife habitats, such as bird nesting sites or seal colonies. Always check specific trail regulations before you go.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 3,300 reviews. Hikers often praise the diverse landscapes, from stunning coastal views to tranquil marshlands, and the opportunities for wildlife observation. The well-maintained trails and picturesque villages are also frequently highlighted.
Yes, many of the trails in the Parc Naturel Régional Baie De Somme Picardie Maritime are circular, allowing you to start and end at the same point. Examples include the Lamotte Circuit, which offers coastal views and passes through the Bois de Cise, and the Le Hourdel Loop, exploring the coastal area around Le Hourdel.
For coastal walks with stunning sea views, consider routes that follow the nearly 70 kilometers of coastline. The Lamotte Circuit offers views from chalk cliffs, while the White Route of the Bay of Somme provides paved tracks close to the beach, ideal for observing seals and birds.
Yes, the park features extensive marshes and wetlands, offering unique hiking experiences. Walks around the Crotoy municipal marsh are particularly recommended for immersing yourself in its rich biodiversity. Other trails delve into wetlands near fish-filled ponds, showcasing characteristic flora and fauna.
Parking is generally available at or near popular trailheads and in the charming villages throughout the Parc Naturel Régional Baie De Somme Picardie Maritime, such as Saint-Valery-sur-Somme and Le Hourdel. It is advisable to check local signage for any specific parking regulations or fees.


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