Quang Ninh is a large province located along the northeastern coast of Vietnam. The province is home to Ha Long Bay, a World Heritage Site. Quang Ninh has a common international border with the People’s Republic of China. Inland, north of province (Binh Lieu, Hai Ha districts and Mong Cai) borders Dongxing City and Fangcheng County in Guangxi Province, PRC with the borderline of 170 km. The province also borders Lang Son, Bac Giang and Hai Duong provinces to the west, and the city of Hai Phong to the south.