Nantau or Nam Tau (南頭) is an area at the back of Nantau Peninsula in Kwangtung, China. It was formerly a walled city facing Tai Shan Bay for coastal defense in Bao'an County and now is the capital city of the Nanshan District in Shenzhen. It was also the administrative centre in the area surrounding including Hong Kong. The city was on the sea route in South China and regarded as the gatekeeper of Pearl River and Guangzhou.
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