Xisha Islands is one of the four islands in the South China Sea and now belongs to Hainan Province. Located in the southeast of Hainan Island. With Yongxing Island as the center, it is about 330 kilometers away from Yulin Port in Sanya City and 330 kilometers away from Qinglan Port in Wenchang County. Xisha Islands are distributed over a sea area of more than 500,000 square kilometers, with more than 40 islands and reefs, mainly concentrated in two groups: Xuande Islands in the east and Yongle Islands in the west. Among the four major islands in the South China Sea, Xisha Islands has many land exposed to the sea, including 22 islands and 7 sandbars, with a total land area of about 10 square kilometers. These islands and sandbars are as follows:

Island fishermen are commonly known as land area names (square kilometers)

1, Baodao Tail Island, Tail Island 0.36 2, Ganquan Round Island, Round Island 0.30 3, Coral Island Loaf Island, Loaf Island 0.310.4, Quanfukushima, Quanfukushima, Qushou 0.02 5, Yagong Island Yagong Island 0.010.6. Baizhizai, Baijiao 0.40 14, Zhongjian Island Halfway, Halfway Branch Stone, Luodao 1.20 15, Yongxing Island Cat Note, myna Note, Maodao 2.1kloc-0/6, Shidao minibus. Zhongdao Erdao 0. 13 19, Beidao Changzhi, Changdao 0.04 20, Zhaoshu Shudao, Yindao, Chuanyin Island 0.22 2 1, Dongdao Maoxing Island, Baxing Island 0.60 22, Gao Jianshi, and Shuangfan 0.04 23, basket. 25. Xixin Shuizhou 2000 (square meter) 26, South Huizhou 0.06 27, Middle Shoal 0.05 28, North Shoal 0.02 29 and West Shoal 0.04.

In addition to these island sandbars exposed to the sea, there are more than 10 reefs in Xisha Islands. Among these islands and reefs, Yongxing Island with the largest area is 2. 10 square kilometers, Dongdao Island with the second largest area is10.60 square kilometers, Zhongjian Island is10.20 square kilometers, and the rest are all below 0.4 square kilometers. The Shidao with the highest altitude is 13m, and the others are all below 9m, generally 1-5m. Gaojianshi is the only volcanic island exposed to the sea.

Xisha Islands is located in the middle of the tropics, with a tropical monsoon climate, hot and humid, but no heat. Taking Yongxing Island as an example, the extreme high temperature is 34.9℃, the extreme low temperature is 15.3℃, and the annual average temperature is 26.5℃. The annual rainfall is 1505mm. Xisha Islands is the most vulnerable area to typhoon.

Yongxing Island is the largest island in Xisha Islands, with an area of 2. 1 km2. It is also the military and political center of Xisha Islands, Nansha Islands, dongsha islands and zhongsha islands. Now it is the resident of Sansha Municipal Government in Hainan Province. Yongxing Island has beautiful scenery and coconut trees in the shade.

[1] Xisha Islands is one of the famous fishing grounds in China. The vast sea area, scattered islands and reefs, rich seafood and many precious species attract a large number of fishermen from all over the country to fish on the island every year.

Yongxing Island is the capital of southwest zhongsha islands, with government agencies sent by Hainan Province (equivalent to county level). The local government exercises effective sovereign jurisdiction over the islands and reefs and their waters, and is committed to promoting the development of social and cultural undertakings and marine economy on the island. Yongxing Island is also the transportation hub of southwest zhongsha islands. A maritime traffic line centered on Yongxing Island has been formed for a long time in history. Fishermen from China have to transit through Yongxing Island when sailing to Xisha Islands or distant Nansha Islands and zhongsha islands. Now, in addition to the huge fishing fleet, there are emerging large-scale shipping and air transportation. They are all island-centered, connecting various island reefs and maritime traffic. Yongxing Island is also the economic center of southwest zhongsha islands. In addition to the powerful marine economic management function, the huge island material distribution function and the rapid development of the island's social economy have played a radiating role in the island reef and its sea area.

The construction of Yongxing Island changes with each passing day. Many industries in the national economy, such as marine fishery production, construction, industry, transportation, post and telecommunications, commercial retail, material supply and marketing, finance and insurance, and residents' living services, have developed rapidly. Health, radio, film and television, marine research, weather forecasting and other social and cultural undertakings on the island are increasingly developed; The island has successively completed the construction of power plants, ports, airports, hospitals, seawater purification, freezers, commercial service buildings, office buildings, residential buildings and other projects, forming a relatively complete production and living facilities. Today, Yongxing Island is a veritable island new city with beautiful environment, convenient transportation, developed production and happy residents' lives.