The Secret Lives of Lakes

Lake Baikal, Ice and Water (1x1)

Air date: Sep 27, 2015

In the heart of Siberia, a paradoxical lake defies the usual laws of such bodies of water. It is 25 million years old and getting deeper every day, covering a deep abyss in the Russian landscape. Those who live on its shores revere this exceptional lake, calling it "the Pearl of Siberia."