In an ideal position at 240m altitude, the spa is characterized by a moderate continental climate with 2200 hours of sun a year, and the absence of strong winds and cold air masses. Clean air with a high content of ozone, without any pollution, the vrdnik spa is classified as an air spa.
Spa Vrdnik has medicinal water that, due to its temperature and chemical composition, belongs to the category of hypothermal waters. The water temperature of 29-32 degrees Celsius, the altitude and the clean air make the spa one of the air spas of Serbia.
The beneficial effect of thermal water has been known since the beginning of the 19th century. At the time when Vrdnik was a mining town, the miners were the first to try out the positive effects of this water. Working in the shaft, they often stood in water that appeared from cracks in the limestone. Not knowing anything about the quality of that water, they only noted the alleviation of the symptoms of bone pain and faster epithelialization of the skin. The results of the water analysis only confirmed the statements of the miners and set the scientific framework for the application of this water in medicine.