Best lakes around Fos-Sur-Mer are characterized by a diverse landscape of étangs, or lagoons, which include brackish, saltwater, and freshwater bodies. This region, situated near the Mediterranean Sea, features unique ecosystems and significant natural areas. The area offers a variety of natural features, from extensive lagoons to smaller, ecologically rich ponds. These bodies of water contribute to the region's biodiversity and provide distinct natural environments.
Last updated: July 5, 2026
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Pond located between Castillon and Saint-Mitres in which many migratory and other animals land.
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Fos sur Mer salt marshes which are home to protected flora and fauna. Beautiful cycle path going around the pond which is not sheltered from the mistral when it blows.
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greenway from Fos to the train station - unfortunately no signs
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An impressive rock. One of the last rock formations that you can see before you continue west and you only see the flat Camargue.
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The first part of the road from Fos is dangerous and unpleasant, you have to arrive at the Salins de Giraud to find a safe and quiet route, and to be able to enjoy the beautiful landscapes of the Camargue.
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Nice spot with a beautiful view between the pond of the olive tree and the pond of berre.
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scenic bike path on the isthmus between the two etangs. Stupid locks at the beginning and end. Hard to get through with luggage.
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Among the most appreciated spots are Pourra Pond, known for attracting migratory animals and offering peaceful, distant views. Another favorite is the View of the Étang de Berre, which provides a stunning 180° panorama of the large lagoon. Visitors also enjoy Engrenier Pond, notable for its impressive rock formation.
Yes, the region is excellent for birdwatching. The Étang de Berre is a significant biodiversity hotspot, regularly hosting over 20,000 water birds. The Étang de l'Estomac is also a prime location, especially in winter, where you can observe species like Black-necked Grebes, Great Crested Grebes, and flamingos. Étang de Citis, a freshwater pond, serves as a crucial resting and feeding ground for various waterfowl and herons.
The lakes around Fos-Sur-Mer offer several unique natural features. The Étang de Lavalduc is remarkable for its exceptionally high salinity and iridescent pink-blue coloring, caused by *Artemia salina*, and holds the distinction of being the lowest point in France. The Étang de Berre, one of Europe's largest inland 'seas,' boasts a unique brackish ecosystem. Étang de Citis stands out as a permanent freshwater body amidst saline lagoons, surrounded by rich biodiversity and the Castillon forest.
Yes, several areas are suitable for families. Pourra Pond is considered family-friendly, offering a peaceful environment. The shores of the Étang de Berre, particularly beaches like Romaniquette and Ranquet in Istres, are equipped for swimming and various water sports, making them great for family outings. The observation points and walking paths around the Étang de l'Estomac also provide accessible options for families to enjoy nature.
The region offers a variety of outdoor activities. Along the Étang de Berre, you can enjoy water sports such as windsurfing, dinghy sailing, catamaran, jet skiing, water skiing, and rowing. Hiking trails are available along its banks and around Étang de Citis. For more structured routes, you can explore hiking trails, cycling routes, and MTB trails around Fos-Sur-Mer, many of which pass by these lakes.
Absolutely. The Étang de Berre has hiking trails along its banks, and Étang de Citis offers hiking opportunities, including trails near the archaeological site of Saint-Blaise. For cyclists, there's a scenic bike path on the isthmus near Engrenier Pond. You can find various hiking and cycling routes that explore the lake areas, catering to different difficulty levels.
The Étang de Lavalduc is a highly saline saltwater lagoon, owned by the Salins du Midi company. Its most striking feature is its vibrant iridescent pink-blue coloring, caused by small crustaceans like *Artemia salina*. It's also notable for being the lowest point in France, situated about 10 meters below sea level. Due to its fragile environment, guided tours are recommended to visit this unique industrial and natural site.
Visitors frequently appreciate the peaceful atmosphere and distant views offered by places like Pourra Pond. The stunning 180° panorama from the View of the Étang de Berre is also a highlight, often described as very relaxing with boats criss-crossing the pond. The unique natural formations, such as the impressive rock near Engrenier Pond, also draw admiration.
Yes, the Étang de Citis, located within Saint-Mitre-les-Remparts, is the only permanent freshwater pond among the interior lagoons in that specific area. It boasts rich biodiversity and is recognized for its ecological and landscape quality, providing a tranquil escape with reed beds and surrounding forests.
Yes, near the Étang de Citis, you can find hiking opportunities that pass by the nearby archaeological site of Saint-Blaise. This adds a cultural dimension to the natural exploration of the area.
While specific seasonal recommendations aren't detailed, the region's Mediterranean climate generally makes spring and autumn ideal for outdoor activities like hiking, cycling, and birdwatching, as temperatures are milder. Winter can be excellent for birdwatching at Étang de l'Estomac. Summer is suitable for water sports on the Étang de Berre, though it can be quite warm.
Yes, flamingos are a common sight in the region. The presence of *Artemia salina* in the highly saline Étang de Lavalduc attracts them. Additionally, the Étang de l'Estomac is managed to create an ideal habitat for numerous bird species, including pink flamingos, especially in the 'old salins' area of Fos.


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