camargue flora, vegetation around the regional nature park, ramsar wetlands, marshland and sand dunes in southern france

arles bog camargue cover crop delta dense developing dunes europe flat flora fragile france ground heritage hiking lagoon land landscape magic marsh marshland marshlands mediterranean natural nature ornithological outdoor park preservation protected provence ramsar reed region regional reserve responsible sanctuary sand sea site spongy sustainable swamp swampland tourism trail unesco unique vegetation waterlog wetland wetlands world