Lake Baikal, located in eastern Siberia of the Russian Federation, is not only the deepest freshwater lake but also the oldest lake on the planet. With its pristine beauty, long history, and special ecological value, Baikal stands out as a treasure of the Earth, containing up to 20% of the world's surface freshwater, equivalent to about 23,600 cubic kilometers of water.

A major clean-up operation has been launched in Siberia after the huge arctic fuel spill incident threatening a pristine territory through a series of lakes and tributaries.