Bridge of o Navea Monument · San Xoán de Río, Terra de Trives, Ourense Image of San Xoán de Río, not of the place itself. A bridge of Roman origin over the river Navea, rebuilt in the sixteenth century, 3.75 metres wide and with an arch of twenty metres; it carried the Vía Nova over the river on the route between Braga and Astorga. Photo: Estevoaei (CC BY-SA 4.0) What to see and do in San Xoán de Río