Kanas Nature Reserve, Xinjiang

Kanas Nature Reserve, as China's northernmost protected area, safeguards 2,500 square kilometers of Siberian taiga and glacial lakes near the Altai Mountains. It hosts the Tuvan people's nomadic traditions, with over 200 families still practicing seasonal migration. The reserve's water clarity of 10 meters in Lake Kanas outperforms #6 Changbai Mountain's Tianchi by 30%. Average winter temperatures drop to −30°C, colder than any other park on this list.