Yegor Lesnoi is cleaning up the bottom of Lake Baikal for the third year in a row, and does so in his spare time and absolutely for free. He makes money by making advertisements and documentaries.

In the icy depths of Lake Baikal, the world’s oldest and deepest freshwater lake, a robotic expedition has uncovered stunning geological secrets that were previously hidden beneath the surface. Known ...

Wearing nothing but a bathing suit, a swimming cap and an underwater mask, the 40-year-old woman plunged into a carved-out section of a frozen Siberian lake, before diving under the ice to swim in ...

Yekaterina Nekrasova, who took up free diving four years ago, then held her breath for a minute and a half as she covered the 85 meters (279 feet) of a frozen Lake Baikal on January 7 -- the Russian ...

Lake Baikal holds several global records itself. Somewhere between 20 and 25 million years old, it is the oldest existing freshwater lake on Earth. Reaching down as far as 5,315 feet, it is the ...