Étang de l'Estomac walks

This hike offers striking contrasts between the historic centre of Fos-sur-Mer with its Hauture hilltop castle on one side, the Étang de l'Estomac lagoon and former Fos salt marshes on the other, and the surrounding industrial activity characterised by the numerous oil tankers in the nearby Gulf of Fos. Information panels will help you discover the history of the former salt marshes.