Dong Hoi is the capital of Quang Binh province in the northcentral coast of Vietnam. This city is adjacent to Quang Ninh district in the west and south, Bo Trach district in the east and the South China sea in the east. Dong Hoi has a 12 kilometer coastline with the sandy smooth beaches. Dong Hoi is about 486 kilometers from Hanoi and 1, 204 kilometers from Ho Chi Minh city. This city is 50 kilometers from the north of UNESCO’s World Natural Heritage Site, Phong Nha-Ke Bang.

In the past, Dong Hoi used to be a northern tip of Champa kingdom, and this city officially belonged to Vietnam in 1069 after the victory of General Ly Thuong Kiet against Champa in Vietnam-Champa war under Ly dynasty. During the time of Trinh-Nguyen war in the 17 century, Vietnam was divided into 2 regions and this city is the boundary city which played an important role of the Nguyen Lords to against the Trinh Lords in the northern part. After the union of Vietnam in 1975, Dong Hoi belonged to the big province of Binh-Tri-Thien until 1990, Binh-Tri-Thien was again separated into Quang Binh, Quang Tri, Thua Thien-Hue, and Dong Hoi became the capital city of Quang Binh province. 

Dong Hoi is famous for its beautiful sandy beaches with smooth sand dunes and clean water of Nhat Le, Da Nhay, Ly Hoa beaches. Moreover, the Bang hot mineral spring is an ideal place for whose who love enjoying spa baths. Dong Hoi is only 50 kilometers from Phong Nha-Ke Bang national park which is very popular place for tourists to explore one of the largest cave and grotto systems in the world.