Hong kong:
Hong Kong, referred to as "Hong Kong", is the full name of People's Republic of China (PRC) Special Administrative Region. It is located in the south of China, east of the Pearl River Estuary, facing Macau across the sea in the west, adjacent to Shenzhen in the north and Wanshan Islands in Zhuhai in the south. Its regional scope includes Hong Kong Island, Kowloon, New Territories and 262 surrounding islands, with a total land area of 1 106.66 square kilometers and a sea area of 65,446. By the end of 2020, the total population will be 7,474,200, which is one of the regions with the highest population density in the world, with the life expectancy ranking first in the world and the human development index ranking fourth in the world. ?