The Ganquan Island of Xisha Yongle Islands is seen in south China's Hainan Province, April 23, 2017. Sansha City, on Yongxing, one of the Xisha Islands, was founded in July 2012. The city sees tourism as its main economic engine and administers three island groups -- the Xisha, Zhongsha and Nansha -- along with surrounding waters. (Xinhua/Guo Cheng)
