Thermal waters have been recognized as a source of health and energy since ancient times, and today there is still interest in balneotherapy as a method of treating various diseases, rehabilitation and prevention. In Poland, as many as 12 spa towns use healing thermal waters in their activities. They include: Busko-Zdrój, Ciechocinek, Jelenia Góra-Cieplice, Gołdap, Inowrocław, Iwonicz-Zdrój, Konstancin-Jeziorna, Lądek-Zdrój, Rabka-Zdrój, Uniejów, Ustka and Ustroń. Healing thermal waters are not only used there for medical treatments, because they also supply the brine graduation towers, are the base for the production of cosmetics and are also used in drinking treatments. Uniejów spa is a part of the cascade system, so the healing waters of...