Halong Bay is located in the Northeast of Vietnam, belonging to QuangNinh Province. It is in the coastal area stretching from 1060 56’ to 1070 37’ east longitude and 200 43’ to 210 09’ north latitude. To the west and northwest, Halong Bay stretches  from Yen Hung District, and includes the large urban areas of Halong City and Cam Pha Town, as well as Van Don Island District. To the south and southeast, it is adjacent to the western Tonkin Gulf and to the west and southwest lies Cat Ba Island in the province of Hai Phong.  On the world map, Ha Long Bay borders to China in the north and in the east it is adjacent to the East Sea.