Danang Danang, in central Tours In Vietnam, is an expanding port and industrial area: its population is now well over a million. It is an attractive centre for three World Heritage areas: Hue Imperial City, Hoi An Ancient Town and the My Son Sanctuary, as well as being very close to some excellent coastal resorts. Destinations in the South of Tours In Vietnam. Ha Long City Ha Long City has a population of about 200,000. It is a comparatively recent amalgamation of a major tourist area with a heavy industrial mining town: initially uneasy bedfellows, the two elements are now fusing. Apart from being the main access point for Ha Long Bay, it is also a centre for Quang Ninh Province and the northeast..