Chapel of os Mártores Monument · Valga, Caldas, Pontevedra A hermitage whose origins local tradition places in the 5th century and which was enlarged in the 17th; it is one of the oldest places of worship in the municipality, raised on the lower Ulla floodplain that separates two provinces. Photo: Lansbricae (CC BY-SA 2.0) What to see and do in Valga