Footage tweeted by the English language Siberian Times shows the 40-year-old woman from Moscow entering the carved-out section of a frozen Lake Baikal, before she started the underwater ice swim.

New wildlife series Asia, presented by David Attenborough, is set to premiere on BBC Player in India on July 18, the makers have said in a statement.

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Siberia offers a tantalizing prize with fewer immediate risks. Its vast reserves of oil, gas, gold, diamonds, rare earth ...

GEOQUIZ: What is the name of the world’s deepest lake, and where is it located? Answer: Lake Baikal. It is located in southern Siberia in Russia, north of the Mongolian border, and is 5,315 feet deep.

Asia is home to some of the most breathtaking lakeside retreats, where you can enjoy a serene environment, perfect for relaxation ...

Russian Prime Minister Vladimir Putin rides a horse during his vacation outside the town of Kyzyl in Southern Siberia on August 3, 2009.

The Power of Siberia 2 project has been stalled for years, but Beijing is growing concerned about the reliability of oil and gas from the Middle East.