China's icebreaker Xuelong (Snow Dragon) arrives in Antarctica on December 5, 2016 after a one-month trip. The Chinese research vessel and icebreaker, which is on its 33rd Antarctic expedition, has made a stop at an ice zone nearly 31 kilometers away from Zhongshan Station. The expedition team has sent helicopters to explore the way through the ice in order to find the safest approach to Zhongshan Station. [Photo: Weibo account of CCTV News/Yang Litian]