Located in the northern part of the Nansha Islands, at the southern edge of the Damoy Reefs,Under the administration of Sansha City, Hainan Province,Northwest of Yongxing Island by 720 kilometers, and 820 kilometers from Manila, Philippines; 420 kilometers from Palawan,West of Zhanjiang Bay, Vietnam, by 580 kilometers,45 kilometers from the Chiyu Island and Meiji Island,The island, named Nan Key Island, is triangular in shape with a diameter of nearly 300 meters and a total area of approximately 0.08 square kilometers,The small reef plate where Nan Key Island is located is circular, with a diameter of about 1.2 kilometers,The island's beaches are 200-500 meters long, with small islands surrounded by sandbars, with heights of 6 meters, with depressions in the middle,Surrounded by coral reefs, with exposed coral reef rock on both sides,Dense shrubs grow on Nan Key Island, reaching 3-4 meters in height, with coconut groves in the middle, and covered with bird droppings,Due to the small size of the sandbar around Nan Key Island, the freshwater storage capacity is limited, resulting in a lack of freshwater,The island was named Luowan Island in 1935,The names Nan Key Island were officially announced by the Chinese government in 1947 and 1983,Chinese fishermen call it the Third Station,The name originated from the fact that fishermen used this island as the 'third station' when fishing in the South China Sea,Nan Key Island is Chinese sovereign territory, and Chinese fishermen have always used it as a fishing base,In 1968, the Philippines illegally occupied Nan Key Island; in 1994, two Philippine gunboats were sunk, and several soldiers were killed,Illegal buildings on the island were destroyed, including an observation tower. Subsequently, the Philippines abandoned the island. The island is currently uninhabited,The Chinese Navy and Coast Guard vessels frequently patrol and oversee the area, effectively controlling it.

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