China Marine Surveillance ship Haijian 83 arrives at Yongxing Island of Sansha City, south China's Hainan Province, March 9, 2013. A marine surveillance fleet departed from Sanya, Hainan Friday afternoon for regular patrols in the South China Sea. The team, consisting of three China Marine Surveillance (CMS) ships, will patrol waters around the Xisha Islands for nine days. [Xinhua]