Chenhang Island: It covers an area of about 0.43 square kilometers and was named to commemorate the "Chenhang Ship" that came here in the late Qing Dynasty. Because of its large area and good navigation channel, the island is also the transportation center of Xuande Islands and the island, and its geographical location is very important. It was occupied by foreign invaders again and again. 1932 France sent pong to land, 1956 South Vietnam sent troops to occupy it. 1974 65438+ 10 I fought back in self-defense and recovered the island, at the expense of many people. Now a martyr monument has been built on the island to commemorate it. Chenhang Island and Coral Island are located on Yongle Atoll, about 40 nautical miles southwest of Yongxing Island in Xisha. There are busy Nanyang Waterways on the west side, and their geographical location is very important. Atoll is rich in aquatic resources, and it is also a good place for ships to berth for shelter from the wind. In order to facilitate the communication between passing ships and officers and soldiers stationed in the island, China Mobile Hainan Company invested heavily in building mobile communication base stations in Coral Island and Chenhang Island.