Would you do this at - 36C? I would never do it, I simply couldn't. But these people from a local club in Krasnoyarsk went swimming in the Yenisei River on December 12, while the air temperature was -36C. The Yenisei River goes through portions of northern Russia and Mongolia before depositing into the Arctic. I don’t know how they are doing it, but judging by the look on their faces it can be said that they enjoy it a lot…It’s just crazy! I’m freezing now.