Lake Baikal

Lake Baikal is the deepest lake in the world with a maximum depth of 1642 meters (5369 ft), and the lake is also known as "blue eye of Siberia". Located in southern Siberia near the Russian-Mongolian border. Lake Baikal large lake with a large eco-systems in which more than 1,700 species of flora and fauna that live, two-thirds of them will only be found here, and declared a UNESCO World Heritage Site in 1996.
The lake is completely surrounded by rugged mountains and dense forest, this lake has an estimated age of 25-30 million years, making it one of the most ancient lakes in geological history.