Hydrotherapy is the use of water for therapeutic purposes, it is one of the oldest methods used to prevent, improve and cure various conditions especially in the locomotor system, respiratory system, dermal system and digestive system.

Hydrotherapy has been developing and becoming more important, due to the recognition of water as a therapeutic agent in different fields of application and depending on the characteristics of the water used.

The thermal waters of the Hotel Balneari Prats in Caldes de Malavella, are mineral-medicinal and flow between 56 and 60 º C of the source with a mineralogical and chemical bicarbonate chemistry, sodium, alkaline, lithic and fluorinated. It also contains silicon, lithium, aluminum, calcium, potassium and manganese.

These characteristics confer therapeutic properties such as the stimulation of gastric secretion, the promotion of the action of pancreatic enzymes and the emulsifying power of bile, or the effectiveness to improve the condition of people with nutritive disorders, such as gout, uric lithiasis , obesity, diabetes and certain rheumatisms, among other properties.