Kanas Lake

Kanas Lake

Kanas Lake is a national geopark and a science education base.

　The Kanas Nature Reserve is located in the northwest of Burqin, deep within the dense forests at the northwestern edge of China's Altai Mountains. It is one of the finest scenic tourism resources in Altay and can be hailed as the "Pearl of Altai Mountain Tourism." This scenic area is a forest-type comprehensive nature reserve and the only piece of Eurasian–Siberian taiga "enclave" in China.

The Kanas River is the main river within the reserve, running from northeast to southwest through the entire area before flowing into the Burqin River. Due to intense glacial erosion, the Akeqile Lake and Kanas Lake—formed by the widening and deepening of high-mountain rivers—resemble two huge mirrors strung together like pearls, embedded in the central part of the Kanas Nature Reserve. They are high-mountain freshwater lakes.

Kanas Lake is shaped like a crescent moon, stretching 24 kilometers from north to south and 1.6 to 2.9 kilometers from east to west, covering an area of 44.78 square kilometers—more than ten times the size of the famed Bosten Lake. With a maximum depth of 188.5 meters, it is the deepest inland lake in China, second only to Changbai Mountain’s Tianchi Lake on the Sino-Korean border, which reaches a depth of 312.7 meters.

Surrounded by mountains, peaks, and ridges, Kanas Lake is crowned with snow, blanketed by dense forests and lush grasslands, with verdant slopes and shimmering waters. The surrounding peaks are reflected in the lake, blending the blue sky, white clouds, snow-capped ridges, green mountains, and crystal-clear waters into a breathtaking panorama. The vertical zonation here is distinct, with silver-glittering mountain tops, majestic modern glaciers—which account for 74.46% of the Altai Mountains' total glacier area and 70.08% of its total ice volume—and the green expanse of pristine Siberian taiga forests, along with vibrant meadows and blooming flowers at the mid-mountain and foothill levels.

The color of Kanas Lake changes constantly with the seasons and weather: sometimes deep blue, sometimes emerald green, slate green, or grayish-white… At times, multiple hues blend together, creating its fame as a "color-changing lake." Driven by strong valley winds, driftwood that falls into the lake floats upstream, accumulating into a kilometer-long "deadwood dam" at the upper lake bays—a spectacular sight unique to Kanas Lake.

Kanas lies in a cold temperate alpine region, enduring long winters without summers and seamless transitions between spring and autumn. The average July temperature is 15.9°C, with a frost-free period of 80 to 108 days and an annual precipitation of 1065.4 millimeters. The cool climate is highly suitable for the growth of cold temperate vegetation. This area boasts the richest diversity of cold temperate plants in China, with a vegetative composition dominated by towering larches, pagoda-shaped spruces, sturdy five-needle pines, graceful firs, and the elegant European mountain aspen and warted birch. The forest coverage rate across the region is 19.4%, and within forested land, the coverage reaches as high as 82%. Research has identified 798 plant species from 298 genera and 83 families in Kanas, including China’s only known distributions of Xinjiang five-needle pine, Xinjiang fir, shrub willows, Siberian mountain ash, elderberry, deer antler root, small-leaved birch, and Altai rhubarb Jack-in-the-pulpit. Among the known mammals in Kanas are 39 species, while the area hosts 224 insect species from 63 genera and 22 orders, with various flower butterflies being especially attractive to tourists.

Kanas not only boasts abundant natural resources and biodiversity but also features distinctive tourism environments and cultural heritage. "Kanas," in Mongolian, means "beautiful, prosperous, and mysterious." During the Yuan Dynasty, Yelü Chucai passed through and wrote: "Who knew the western lands held such wonders, now I believe the spring lord shows unmatched grace; three hundred round pools and square ponds, all with limpid spring water so flat and bright." The blue skies, white clouds, icy peaks, snow-capped ridges, forests, meadows, rivers, and Kanas Lake itself create a stunning harmony, merging landscapes into a single breathtaking view. With both the grandeur of northern scenery and the delicate beauty of southern vistas, plus rare wonders such as the "sea of clouds and Buddha’s halo," the "color-changing lake," the "driftwood dam," and the legendary "lake monster," how could this not be called a fairyland or jewel of the western regions?!