Islet of Areoso Curiosity · A Illa de Arousa, Salnés, Pontevedra Image of A Illa de Arousa, not of the place itself. A sand islet a little over a kilometre from A Illa de Arousa where erosion has laid bare several Neolithic mámoas and a dolmen; the retreat of the dune now threatens that megalithic cemetery. Photo: jose antonio casanov… (CC BY-SA 3.0) What to see and do in A Illa de Arousa