Malecón of the Sil Activity · O Barco de Valdeorras, Valdeorras, Ourense A riverside walk laid out along the bank of the Sil as it passes the comarca capital, the town's main leisure space and a natural viewpoint over the river and the mountains that close the valley. Photo: Fogar Mozárabe (CC BY-SA 4.0) What to see and do in O Barco de Valdeorras