Fraga das Barbudas Nature · Aranga, Betanzos, A Coruña Image of Aranga, not of the place itself. An Atlantic deciduous wood of some fifty hectares in the valley of the River Cambás, a tributary of the Mandeo, included in the Betanzos-Mandeo Special Area of Conservation; it is one of the best preserved groves in the Mariñas Coruñesas Biosphere Reserve. Photo: el Buho nº30 from Galicia (CC BY-SA 2.0) What to see and do in Aranga