Buluus is the unique source of the underground water which shapes the ice fields of clean fresh water which do not melt even in the warmest days. It is very popular among people and guests of Yakutia. The word “Buluss” is translated from Yakut language as “glacier” or “cellar”. This place is admitted as the landscape and hydrological nature Reserve of republican significance. Total area of the Reserve is 1105 hectares. In some places the thickness of the ice field reaches 3 meters. The source Buluss is located 100 km far from Yakutsk near village Krasniy Ruchey in Khangalassky region. The water is produced from the cleft with the depth 67 meters. The fresh water of Buluus is the cleanest one. During summer time the glacier partially begins to melt and forms the cavities which resemble tunnels. When the temperature in summer over the glacier is +30°C and higher, inside it is twice lower. The temperature of the water inside the glacier is permanent throughout a year (0,1 – 0,2оС). The water of Buluus has a high quality and contains necessary microelements for human organism. The presence of silicic acid in the composition of clean water (18 – 40 mg/l), which slows down the ageing process of human organism and prevents the contraction of the different diseases, has the special significance.