Natural monuments around Berre-L'Étang are centered on the vast Étang de Berre, Europe's largest saltwater lagoon, covering 15,500 hectares. This region features a significant ecosystem with diverse flora and fauna, including numerous bird species and protected wetlands. The area offers various natural features, from coastal beaches to historical quarries and freshwater springs. Its landscape provides opportunities for exploring ecological sites and scenic viewpoints.
Last updated: May 21, 2026
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A short detour from the main path, along the road, offers magical and unusual viewpoints.
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Description of the hike: follow the path from the parking lot to reach the source. The start is under a large metal portico bearing the inscription "Chemin de l'Infernet". The walk is part of the GR13. It is marked with red and yellow lines. A very simple little walk, no equipment necessary. Very few places for parking!
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Almost 2kms along the road. You can climb to the top of the rock for a nice view but watch out for the void!
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Very very nice hike. Maybe just correct the difference in altitude (280 m cumulative) which in my opinion does not classify it as easy but as intermediate. But it's done well and it's very pleasant!
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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 source of the Infernet seems to be a natural underground water source when it is in fact the result of an artificial watercourse, the Réaltor basin built in 1869. The source finally stops when it meets the pond of Bolmon.
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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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The region is dominated by the vast Étang de Berre, Europe's largest saltwater lagoon, which is a significant ecosystem. You can also explore the Salines de Berre, important salt marshes that are part of a Natura 2000 site, and the protected wetlands of Étang de Bolmon, known for rare Mediterranean temporary marshes. These areas are crucial for biodiversity and offer unique landscapes.
Yes, the Baou Tailla Quarries are a notable historical site. These shell limestone quarries were historically used to supply building materials to Marseille, offering unique viewpoints and photographic opportunities today.
The Étang de Berre offers various water activities. You can enjoy paddleboarding, pedal boating, and kayaking. Beaches like Merveilles beach are popular for swimming, especially given the improved water quality of the lagoon.
Absolutely. The Infernet spring offers a very simple walk along a marked path, making it suitable for families. Additionally, the beaches around the Étang de Berre, such as Merveilles beach, are popular for family outings and swimming.
For splendid views, visit the Château Virant Rock, which offers an orientation table and panoramic vistas. The Baou Tailla Quarries also provide unique viewpoints and photographic opportunities of the surrounding landscape.
The area around Berre-L'Étang is excellent for outdoor activities. You can find numerous hiking trails, including the "Balade à Fleur d'Étang" circuit. For more specific routes, explore options like the Berre Lagoon – Coastal Path Near Istres loop. You can find detailed hiking routes at Hiking around Berre-L'Étang. There are also many cycling routes, including road cycling and touring bicycle options, which you can discover at Road Cycling Routes around Berre-L'Étang and Cycling around Berre-L'Étang.
Yes, the region boasts several protected zones crucial for wildlife. The Étang de Berre itself is a vital site for bird protection, hosting over 20,000 water birds annually. The Salines de Berre and areas like Étang de Bolmon, Domaine du Ranquet, and Site la Poudrerie are part of Natura 2000 sites, preserving habitats for diverse species, including flamingos and various migratory birds.
The region generally enjoys a Mediterranean climate. Spring and autumn offer pleasant temperatures for hiking and exploring without the intense heat of summer. However, summer is ideal for water activities and enjoying the beaches of the Étang de Berre.
Visitors frequently appreciate the scenic beauty and tranquility of the area. The Calanque of the Salt Waters is particularly praised for its very pleasant hikes and beautiful views. The unique geological features and historical context of sites like the Baou Tailla Quarries also draw significant interest.
Yes, there are options for easy walks. The path to The Infernet spring is described as a very simple walk, requiring no special equipment. The "Balade à Fleur d'Étang" circuit is also noted for being an accessible route for all ages, allowing you to explore the green and blue landscapes.
The most prominent natural feature is the vast Étang de Berre, Europe's largest saltwater lagoon. Additionally, you can visit the Engrenier Pond, which offers scenic views, particularly along the isthmus between the two étangs.


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