Close Advertising Uncover the Mysteries of the Deepest Lake on Earth | National Geographic On his World Cup tour of Russia, explorer Sergey Gordeev visits Siberia to learn about the world’s oldest, largest, and deepest … The Biggest animals baikal Deepest Lake discover documentary explore explorer Sergey Gordeev FIFA Gordeev visits Siberia lake baikal lake baikal depth largest mysteries Nat Geo Natgeo National Geographic nature PLivjPDlt6ApRfQqtRw7JkGCLvezGeMBB2 PLivjPDlt6ApRiBHpsyXWG22G8RPNZ6jlb PLivjPDlt6ApTqKN6DbR-GOM5omen0Xm2a russia science Sergey Gordeev siberia Siberia to learn survival the Deepest tour of Russia Uncover the Mysteries wildlife World Cup World Cup tour world's oldest 4 views 0 / 0