Macau is located at11334'-11335' east longitude and 22 06'-22 13' north latitude. According to records, the area of Macao Peninsula was less than 3 square kilometers in19th century. After 100 years of land reclamation, the land area of Macao today reaches 23.5 square kilometers, which consists of two offshore islands: Macau Peninsula, Taipa Island and Cologne. Macao is located on the west side of the South Pearl River Estuary, bordering the Pearl River Delta in the north, Lingdingyang in the east, facing Hong Kong across the sea, Modaomen, Wanchai and Qinheng Island in Zhuhai across the sea in the west, and Gongbei in Zhuhai in the north. Macao is 40km away from Zhongshan, 0/45km away from Guangzhou/KLOC-0 and 6 1 km away from Hong Kong.