The riverside areas of Os Currás and Bardaos Nature · San Sadurniño, Ferrol, A Coruña Image of San Sadurniño, not of the place itself. Two riverside spots fitted out on the banks of the rivers of the concello, with alder groves and old fulling mills. Nearby lies the ponte da Ferrería, a medieval bridge that crosses the river Castro on the way to the castelo de Naraío. Photo: manolofeal (CC BY-SA 3.0) What to see and do in San Sadurniño