Frolikha spring is a natural water site, which is under control of environmental authorities. The temperature of the spring is relatively constant +35°С or +36°С.
The water contains hydrocarbonate-sulphate calcium-sodium. There are numerous little thermal springs located along the slope. They form one relief zone of tectonic dislocation, which is linked to the river valley. The water mineralization is 0,3 g/l. Total water outflow is 7-8 liters per second.