Cui Deyi, left, and Jin Songhao rest before going into boxes of ice water to decide who is the No 1 iceman in East China's Huangshan city, July 21, 2012. Cui Deyi set the Guinness winter swimming record after swimming in 4.3 C seawater for 75 minutes and 31 seconds in 2011. Jin Songhao set the Guinness record after standing in ice for two hours in 2011. [Photo by Ma Qibing/Asianewsphoto] 

Cui Deyi, left, and Jin Songhao prepare to get into boxes of ice water to decide who is the No 1 iceman in East China's Huangshan city, July 21, 2012. [Photo by Ma Qibing/Asianewsphoto] 

Cui Deyi,left, and Jin Songhao sit in boxes filled with 5 C?ice water to decide who is the No 1 iceman in East China's Huangshan city, July 21, 2012. [Photo by Ma Qibing/Asianewsphoto]