Lake Uzun-Kel (Uzunkol, Uzun-Kel) - one of the high-mountain lakes of Gorny Altai, is located at an altitude of 2000 m above sea level. Lake Uzun-Kel has a very elongated form from north to south, which is reflected in its name, which is translated from Altai as "a long lake". The length of the reservoir is about 3150 meters, the greatest width is 630 meters. Replenishment of water occurs due to several sources: meltwater, sediments, and groundwater. The greater part of Lake Uzun-Kel In the Altai Republic has depths of over 10 meters, maximum depths of up to 25-28 meters. From it the river Kayachek originates.
The lake basin appeared as a result of a tectonic fault, and then was exposed to the action of a glacier. The water in Uzun-Kel Lake is fresh, soft, odorless and tasteless, dark blue. It is very transparent, the bottom can be seen even at a depth of seven meters. There is a fish in the pond.
Uzun-Kol has the status of a monument of nature of regional importance and has a kilometer of rest zone.
Ecological tourism is actively developing in its environs, many come here for fishing. On the shore of Uzun-Kol there is a small hostel with a cafe and a hotel.