Waterfall of o Segade Nature · Caldas de Reis, Caldas, Pontevedra A fall on the River Umia a kilometre and a half from the town, on a stretch where the channel strings together pools and several drops of water among granite blocks and riverside woodland; it is a much used bathing spot in summer. Photo: Iago Pillado (CC BY-SA 3.0) What to see and do in Caldas de Reis