This remote nature centre, 12km south of Salin de Giraud, organises fantastic forays through marshland, scrubby glasswort, flowering sea lavender (August) and lagoons, on foot and horseback; call ahead to book horse treks (€18 per hour). Before hitting the scrub, rent binoculars (€2) and grab a free map of the estate’s three marked walking trails (1km to 8km) from the office.