Actors perform a dance during the opening ceremony of the 4th Wolong Lake Winter Fishing Festival in Kangping county, northeast China's Liaoning Province, Jan. 16, 2016. The festival represents the grand winter fishing scene of Qidan, an ancient nationality of China in Liao Dynasty (916-1125). Wolong Lake, the largest freshwater in the province, occupies an area of 127.5 square kilometers. (Xinhua/Zhang Wenkui)