Healing water of the Mlječanica spa is over 5000 years old, and first research of the mineral water of the site was conducted by the Viennese chemists E. Ludnjig and S. Kratzer from 1886 to 1889. The Mljecanica Spa (Institute of Physical Medicine and Rehabilitation) is located in the beautiful natural setting on the north slopes of the Kozara Mountain.
The Institute was designed as a modern specialised health facility for physiotherapy and rehabilitation, which provides conditions for a successful recovery and pleasant stay of its guests. The quiet and peaceful surrounding area of the Institute offers visitors an excellent opportunity to rest and relax. Sports fields give the opportunity to engage in various recreational sports.