2016年1月12日，冬泳爱好者们站在玉渊潭岸边准备跳入冰冷的河水中。[中国网 陈博渊 摄]
A group of winter swimming enthusiasts stand on the ice in Yuyuantan Park, a scenic spot with half of its area covered by four lakes in Beijing's Haidian District, on Jan. 12, 2016. [Photo by Guo Yiming/China.org.cn]