The world famous traveller made call ahead of his latest epic adventure by dog sled to Greeland via the North Pole.
Warmer winter caused problems for Sergey whose misfortune, and quick rescue, were captured on his own hi-tech camera.
Father missing under snow; more than 200 people continue search and rescue at -23C, snowstorm and bleak light of polar night.
Here's how people can substitute Siberia after the falls of the rouble.
There won't by any other Russian idea or brand, or anything from Russia that would be as sellable as Russian Winter.
Winter comes to summer including freak hailstorms, mega-flooding but also wild fires.
Growing number of brave Siberians strip off for the winter, with debate raging about the benefits of taking to the snow and ice naked.
The Australian travel company is revolutionising the image of Siberia in the outside world.