The city of Sandanski is tucked away in the southwestern corner of Bulgaria, in the Sandasko-Petrichka valley, which is located at the foot of Pirin Mountain. Sandanski is situated at equal distance between Sofia and Thessaloniki and it is an important crossroad on the main international road E79 – only 20 km. away from the border with Greece and 40 km. away from the Macedonian border.
Sandanski is known as the warmest settlement in Bulgaria with an average annual temperature of 14°C, 2506 hours of sunshine, an average of 5 foggy days per year and the lowest content of airborne allergens. Because of all this the city is world-famous as the best natural balneotherapy sanatorium in Europe for chronic lung and upper respiratory tract diseases – bronchial asthma, chronic and asthmatic bronchitis, post-pneumonic conditions, recovery after pulmonary operations, chronic obstructive pulmonary disease, chronic rhinitis, pharyngitis, sinusitis, allergic rhinitis (also known as hay fever), respiratory neurosis, etc.
Today the city is well-known as national and international balneological resort. This is not accidental as the mineral springs in the city vary from 33°С to 83°С and are characterized by low mineralization, rich chemical composition and are successfully use for treatment and prevention of a number of respiratory tract diseases, rheumatoid arthritis, and diseases of the musculoskeletal, central and peripheral nervous systems, etc.