Photo taken on Dec.12, 2013 shows the icicles formed at Hukou Waterfall, a section ofthe middle reaches of the Yellow River, in Yichuan County,northwest China's Shaanxi Province. It is the first year that theYichuan Hukou Waterfall Scenic Area of Shaanxi is open to touristsin winter. (Source: Chinanews.com/ Wang Xiaoying)

(Source: Chinanews.com/ Wang Xiaoying)

(Source: Chinanews.com/ Wang Xiaoying)

(Source: Chinanews.com/ Wang Xiaoying)

(Source: Chinanews.com/ Wang Xiaoying)