Sun Fengtong warms up before swimming in cold water in Harbin, capital of northeast China's Heilongjiang Province, Jan. 24, 2012. Sun Fengtong, a 86-year-old winter outdoor swimming fan, went to practise everyday during the Spring Festival holiday. He likes to swim in water which is nearly 0 degree centigrade. Every time he spent 20 to 30 seconds in the cold water. Sun believes that swimming in icy water could keep his body fit. [Photo: Xinhua/Wang Jianwei]