Ha Long Bay, located in the Gulf of Tonkin, within Quang Ninh Province, in the northeast of Vietnam, is165 km from the capital of Ha Noi. This place is a UNESCO World Heritage Site and popular travel destination in Quảng Ninh Province, Vietnam. Halong Bay is a beautiful natural wonder in northern Vietnam near the Chinese border. The Bay is dotted with 1,600 limestone islands and islets and covers an area of over 1,500 sqkm.