Lake Baikal lies in Southern Siberia in Russia between Irkutsk Oblast to the northwest and Buryatia to the southeast near the city of Irkutsk. It is also known as the Blue Eye of Siberia. Lake Baikal is the deepest and oldest lake in the world as well as the largest (by volume) freshwater lake. It contains over 20% of the world's liquid fresh surface water and more than 90% of Russia's liquid fresh surface water. It is a World Heritage Site.
