2016年1月12日，一位冬泳爱好者在玉渊潭公园冰冷的河水里游泳。[中国网 陈博渊 摄]
A man swims in the icy cold water of 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 Chen Boyuan/China.org.cn]