Guangdong is a coastal province located in South China, on the north shore of the South China Sea. The provincial capital is Guangzhou. With a population of 126.84 million across a total area of about 179,800 km2 (69,400 sq mi), Guangdong is the most populous province of China and the 15th-largest by area as well as the third-most populous country subdivision in the world.

Pratas Island, also known as the Tungsha Islands or the Dongsha Islands, is a coral island situated in the northern part of the South China Sea administered as part of Cijin District, Kaohsiung, Taiwan. It is located about 170 nautical miles southeast of Hong Kong. It has an area of about 240 hectares, including 64 hectares of lagoon, and is the largest of the South China Sea Islands. It is the location of the Dongsha Airport.