Spring of Troncoso Monument · Mondariz Balneario, Condado, Pontevedra Image of Mondariz Balneario, not of the place itself. A spring discovered around 1862 by the parish priest Domingo Blanco Lage and declared of public utility in 1873; in the early 20th century Antonio Palacios roofed it with a pavilion crowned by a great concrete dome, on the banks of the River Tea. Photo: Enrique Dans (Edans) from Madrid (CC BY 2.0) What to see and do in Mondariz Balneario