Konstancin - Jeziorna as a town is administratively forming a part of the Piaseczyński district and the Masovian voivodeship. The population is about 17 thousand citizens. It is the only Health Resort in Mazovia, located in the close neighborhood (18 km) of Warsaw, on Mazovian lowlands. The Resort is surrounded by a compact forest area with the majority of pine stands (Chojnowsko-Słomczyński Forest, Kabaty Forest). The climate is moderately stimulating with a big annual amount of sunny days. At the end of the XIX century Konstancin became a famous place amongst the capital’s cultural elite.
Treated as a summer resort at the beginning, it quickly became a place for permanent settlement for artists, writers, industrialists, diplomats and bankers. The Health Resort status – established in 1917 – mainly thanks to the excellent climate qualities, released the planning initiative. However, until 1939 no health resort has been made due to the initiative. In that period, the sanatorium in Chylice and the Institute of Natural Medicine in Skolimów counted as parts of Konstanicn. Post-war geological research and the boreholes drilled in order to gain natural mineral waters caused the start-up of the classical health resort functions. In 1965 sanatorium „Warszawianka” joined the already existing (since 1962) Neurological Rehabilitation Hospital. A year later, sanatorium “Przy Źródle” has been founded. Renovation and modernization works include most of the spa buildings and facilities. One of the new investments is the Graduation Tower, which was established in 1979 using the brine (chloride-sodium thermal water) from its own borehole. The majority of spa type investments are being realized by "Uzdrowisko Konstancin - Zdrój Sp. z o.o." (Konstancin Health Resort).
In Konstancin - Jeziorna you may treat i.al.: conditions after stroke and brain injuries, hemiparesis, conditions after myocardial infarctions, conditions after cardiac surgery, chronic circulatory disorders, diseases of the locomotors system : spine pain syndromes, peripheral joint pain syndromes, congenital defects of the musculoskeletal system, diseases of the upper and lower respiratory tract.