Hong Kong Map – Hong Kong is located in the southeastern part of China in the Pearl River Estuary and the South China Sea. The development of Hong Kong is notoriously expansive, with a very high population density. According to historians’ estimates, Hong Kong began to inhabit humans since the Neolithic era, but became widely known when Hong Kong was handed over to Great Britain after the Opium War in the 19th century. Portuguese sailor Jorge Álvares was the first European to visit Hong Kong in 1513.