Geography of Taiwan its narrowest. Part of the continental shelf, the Strait is no more than deep, and has become a land bridge during glacial periods. To the south, the island of Taiwan is separated from the Philippine island of Luzon by the -wide Luzon Strait. The South China Sea lies to the southwest, the East China Sea to the north, and the Philippine Sea to the east. Smaller islands of the archipelago include the Penghu islands in the Taiwan Strait west of the main island, with an area of , the tiny islet of Xiaoliuqiu off the southwest coast, and Orchid Island
Coast Guard Administration (Taiwan) Coast Guard Administration (Taiwan) The Coast Guard Administration of the Ocean Affairs Council (CGA; ) is charged with maintaining law and order, protecting the resources of the territorial waters of the Republic of China (Taiwan), which surrounds Taiwan, Penghu, Kinmen, Matsu Islands, Green Island, Orchid Island, Dongsha Islands, and Nansha Islands as well as providing a first line of defense along coastal areas against smugglers and illegal immigrants. The CGA is considered a civilian law enforcement agency under the administration of Ocean Affairs Council of the Executive Yuan, though during emergencies it may be incorporated as part of the Republic