Spa of Baños Vellos Curiosity · Carballo, Bergantiños, A Coruña Image of Carballo, not of the place itself. A sulfurous spring whose use dates back to Roman times: in 1777 the architect Miguel Ferro Caaveiro drew up plans of the ancient baths during a lawsuit over their ownership, and today it is held to be the only active spa in the province. Photo: amaianos (CC BY 2.0) What to see and do in Carballo