Best lakes around Boismont are situated within a region characterized by its diverse natural landscapes, including the expansive Baie de Somme. This area features a mix of mud flats, salt marshes, and estuaries, where the Somme River meets the Channel. The environment supports a rich biodiversity, making it a notable location for observing wildlife and coastal ecosystems. The region offers various natural spaces for exploration and appreciation of its unique geographical features.
Last updated: June 24, 2026
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The bay of summer, on our trip it was low tide.
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Magnificent view of the Bay of Somme at the port of Saint-Valery-sur-Somme. The largest French colony of harbor seals has taken up residence in the Bay of Somme, and you can see them here at high tide.
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Cross the Bay of the Somme from Crotoy, take the steam train back and then go to Le Hourdel to see the seals, that's all you need for a wonderful holiday. https://youtu.be/nenNw-_0ADE
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It's great to see how the landscape keeps changing due to the tides
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The Crotoy municipal marsh is often compared to a miniature version of the Camargue, offering a panorama rich in biodiversity. This natural space promises a total immersion experience for flora and fauna lovers. Don't forget your binoculars to better observe the various species that make their home there, such as storks, swans, ponies and Highland cows. It is also possible to hear or see the green tree frog, an amphibian characteristic of this region.
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Crotoy marsh at La Bassée Crotoy marsh at La Bassée / Somme Bay nature reserve / Marquenterre ornithological park / The Marquenterre dune massif, the mollières de l'Authie and the bordering enclosures / The Crotoy marsh and the adjacent foreshore, Le Crotoy
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The region around Boismont is characterized by diverse natural landscapes, including expansive mud flats, salt marshes, and estuaries where the Somme River meets the Channel. You can observe a rich biodiversity, coastal ecosystems, and various natural water bodies, from tidal bays to bird sanctuaries. For example, Baie de Somme is a nature reserve known for its mud flats, salt marshes, and diverse life forms including marine animals, water birds, and seals.
Yes, several spots are great for families. The Bird Sanctuary in Parc naturel régional Baie de Somme Picardie Maritime is a family-friendly viewpoint where you can observe swans, ducks, and coots breeding near the cycle path. Additionally, On the Seagull Route offers a rich panorama of biodiversity, suitable for family exploration.
You can observe the largest French colony of harbor seals at View of the Bay of the Somme and its seals, particularly visible during high tide. For birdwatching, the Bird Sanctuary in Parc naturel régional Baie de Somme Picardie Maritime is an excellent spot to see various species like swans, ducks, and coots. On the Seagull Route also provides opportunities to see storks, swans, ponies, and Highland cows in a marsh environment.
The Bay of Somme's landscape is constantly changing due to the tides, offering a unique experience daily. While specific seasonal recommendations aren't provided, observing seals at View of the Bay of the Somme and its seals is best during high tide. Bird breeding season would be ideal for visiting the Bird Sanctuary.
Yes, there are several hiking opportunities. You can find easy to moderate hiking routes, such as the 'Saint-Valery-sur-Somme – Port of Saint-Valery‑sur‑Somme loop' or the 'Port of Saint-Valery – Saint-Valery-sur-Somme Lock loop'. For more details on these and other trails, visit the Hiking around Boismont guide.
Absolutely. The area offers various cycling routes, including easy options like the 'Port of Saint-Valery-sur-Somme – Cap Hourdel Lighthouse loop' and moderate ones such as the 'Château d'Arrest by the canal de la somme'. The Cycling around Boismont guide provides more information on these routes.
The Baie de Somme is a significant nature reserve, extending from Le Hourdel to Saint-Quentin-en-Tourmont, known for its rich biodiversity and unique coastal features. Another notable area is the Marais du Crotoy to La Bassée, which is part of the Somme Bay nature reserve and Marquenterre ornithological park.
Visitors frequently appreciate the constantly changing landscape due to the tides, especially at the Bay of Somme. The rich biodiversity, opportunities for birdwatching, and the chance to see seals are also highly valued. The quiet rural roads and immersive natural spaces, like those found On the Seagull Route, are often highlighted by the komoot community.
The Baie de Somme holds cultural historical importance; for instance, William the Conqueror set out from Saint-Valery-sur-Somme within the bay to conquer England. This area combines natural beauty with a rich past.
Yes, road cyclists can explore routes like the 'St. Valery sur Somme – Strada biancha Picarda loop' or the 'Strada biancha Picarda – Dune Trail loop'. These routes offer varying distances and difficulties. You can find more details in the Road Cycling Routes around Boismont guide.
In the marsh environments, particularly along On the Seagull Route, you can observe a variety of species including storks, swans, ponies, and Highland cows. There's also a chance to hear or see the green tree frog, which is characteristic of this region.


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