Espiguette Beach (Grau-du-Roi). Sand dunes invaded by Amorpha fruticosa. Presentation of the 'Life Lag Nature' project which aims at fighting against invasive plant and animal species in order to restore and conserve the lagoon and natural dune areas.
Visit of the medieval city of Aigues-Mortes (13th century): located in the Petite Camargue some 20 kms east of Montpellier. Originally founded by the Romans in the year 102 BC, it has been rebuilt by Louis IX of France in the 13th century, as the starting point for the Seventh Crusade (1248) and Eighth Crusade (1270).
Domaine du Petit Saint Jean (Tour du Valat). Several habitats of patrimonial value: wooded dunes with Pinus pinea, Mediterranean salt meadows, Mediterranean therophytic sandy grasslands, .... The visit will focus on grasslands invaded by Ambrosia psilostachya (there are several other invasive species on the site).