Castañar de Paterna del Río Nature · Paterna del Río, Alpujarra Almeriense, Almería Image of Paterna del Río, not of the place itself. At 72 hectares, this is the easternmost chestnut grove in Andalusia, with the centuries-old specimen known as the Castaño de Constantino. Photo: Schumi4ever (CC BY-SA 4.0) What to see and do in Paterna del Río