There is a small spring at the foot of the Castle Hill. Both in winter and in summer, the water temperature is 7 ° C. According to the analysis of experts, the water from the spring is highly mineralized, slightly alkaline, has a high content of silicon. There are eight chemical trace elements in krinich water: a large amount of sodium, magnesium, calcium, fluorine. People say that spring water is purified when it passes through seven stones. The height of the Castle Hill above the Kamenka River is 11 meters. This is a whole system of natural filters: sand, clay, crushed stone and the prism of time. In 1999, the Patriarchal Exarch of All Belarus, Metropolitan Filaret of Minsk and Slutsk, consecrated the spring and drank the life-giving water.