Situated 100 km east of Hanoi on the Cua Cam River, Hai Phong is the principal port city in the North of Vietnam. With its crescent-shaped nineteenth-century core, old Hai Phong is surprisingly well preserved and can be an attractive stop over on the way to Halong Bay by boat via Cat Ba Island. Moreover many say that the best egg rolls in the world can be found on the streets of Hai Phong.