Zhang Jiansong, a reporter with Xinhua, waves to relatives as she participates in China's fourth scientific expedition to the North Pole, on the icebreaker Snow Dragon in the port in Shanghai, east China, June 24, 2010. The Snow Dragon will sail to the port city of Xiamen June 25, where the expedition team is scheduled to leave for the North Pole on July 1, and start the 85-day research expedition. [Xinhua]