The birth of the Caldes spas Historical milestone · Caldes de Malavella, Selva, Girona Image of Caldes de Malavella, not of the place itself. The first modern spa establishment was built over the thermal waters that had already made this place the Roman Aquae Calidae; in 1829 drainage works had brought to light the Font de la Mina. 1840 Photo: Cherubino (CC BY-SA 3.0) What to see and do in Caldes de Malavella