Bridge of los Santos Monument · Castropol, Eo-Navia, Asturias Opened on 28 July 1987, it crosses the Eo estuary with 612 metres spread over five spans and links Asturias with Galicia; it owes its name to the chapels of San Roque, on the Asturian bank, and San Miguel, on the Galician one. Photo: Certo Xornal from Ribeira, Galicia, España (CC BY 2.0) What to see and do in Castropol