Visit of the salt marsh "La Tenue de Mareil"
Explanations on the construction and operation of the marsh
17 et 18 septembre 2022Passat
Mairie Les Moutiers en Retz
Explanations on the construction and operation of the marsh. History of salt in the Middle Ages in Baie de Bourgneuf. Presentation of 3 types of Gallic salt ovens - 750 to -100 BC.