Best lakes around Saint-Valery-Sur-Somme are primarily found within the unique aquatic landscapes of the Bay of Somme, an estuary and major natural reserve. This area, part of the Parc Naturel Régional Baie De Somme Picardie Maritime, is known for its dynamic environment, rich biodiversity, and significant bird and seal populations. While traditional inland lakes are less common directly in Saint-Valery-Sur-Somme, the region offers diverse water-related experiences. The landscape changes with the tides, providing varied scenic views and opportunities for nature…
Last updated: May 26, 2026
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Journey from Flanders to the Somme – GR 120 coastal path
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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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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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The area is dominated by the Bay of Somme, a vast estuary and nature reserve known for its dynamic landscape that changes dramatically with the tides. It's a significant site for wildlife, including the largest French colony of harbor seals, which you can observe from spots like View of the Bay of the Somme and its seals. The region also features extensive mud flats, salt marshes, and characteristic plants like sea lavender.
Yes, the Bay of Somme is an exceptional ornithological site. The Bird Sanctuary in Parc naturel régional Baie de Somme Picardie Maritime is a prime location where you can observe various bird species like swans, ducks, and coots breeding, often directly from the cycle path. The Parc du Marquenterre, located north of the bay, also hosts nearly 300 different bird species.
Absolutely. The diverse ecosystems of the Bay of Somme and its surrounding marshlands are home to a variety of wildlife. Along On the Seagull Route, for instance, you might spot storks, swans, ponies, and even Highland cows sharing the meadows and ponds, offering a rich biodiversity experience.
The region offers a wide range of outdoor activities. You can enjoy guided kayaking and Polynesian pirogue (va'a) tours to explore the bay's ecosystem. There are also numerous walking and cycling routes. For specific routes, you can explore options like hiking trails, gravel biking routes, and MTB trails in the area.
Swimming is generally not advised at the beach in Saint-Valery-sur-Somme due to strong tidal currents and average water quality. The Bay of Somme is an estuary, not a traditional swimming lake. If you're looking for designated swimming spots, you would need to venture further inland to lakes like Lac de la Frette or Lac de Poses, which are known for very good water quality.
Yes, the Bay of Somme region is very family-friendly. Many highlights, such as Baie de Somme and Bird Sanctuary in Parc naturel régional Baie de Somme Picardie Maritime, are categorized as family-friendly. Children will enjoy observing seals and birds, and the gentle cycling paths, like parts of On the Seagull Route, are suitable for families.
The Bay of Somme offers wildlife viewing opportunities year-round, but spring and autumn are particularly excellent for birdwatching due to migration. For seal observation, high tide is generally the best time, regardless of the season, as they are more visible resting on sandbanks. The dynamic landscape is beautiful in all seasons.
Visitors frequently highlight the magnificent views of the Bay of Somme, especially at sunset, and the ever-changing landscape due to the tides. The opportunity to observe the large colony of harbor seals and the rich birdlife is also a major draw. Many appreciate the peaceful rural roads and the total immersion experience for flora and fauna lovers.
Yes, there are several easy walking options. For instance, the path around View of the Bay of the Somme and its seals offers a very reasonable distance and maritime scenery. Many sections of the cycling paths, such as those near the Bird Sanctuary, are also suitable for easy walks. You can find more easy hiking options in the hiking guide.
Many areas offer relatively flat and stabilized paths, making them accessible. For example, the Alfred Manessier Walk features a gently stabilized gravel path. While specific wheelchair accessibility details vary, the general flatness of the bay area and its dedicated cycle paths often provide easier access compared to mountainous terrain.
Understanding the tides is crucial for exploring the Bay of Somme due to its dynamic nature. While this guide doesn't provide real-time tidal information, local tourist offices or maritime websites for the region are the best sources for current tide schedules to plan your visit safely and effectively.


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