The discharge of the spring is about 10 cubic meters per second! In 17 km Sarva flows into another river - Saldybash which is the tributary of Ufimka river.
The lake water is clean and clear, has a bluish tint, but the colour can change depending on weather. The bottom can be seen in the depth of 12 meters. Water temperature is +3 at the bottom and to +5 degrees on the surface at any time of the year. The lake is of interest to experienced divers – extreme sportsmen.
The lake is a hydrological natural monument.
GPS-coordinates: N 55° 14'14"; E 57° 03'58".