Halong bay boasts some of Vietnam's most beautiful countryside. It is made up of more than 3,000 little islands of Karst rocks, some of which cover an area of 2,000 km². The rock formations are a designated UNESCO World Heritage Site.
The port town of Halong City consists of the two areas "Bai Chai" and "Hon Gai". Legend has it that Halong Bay was created by a "dragon coming down to land" ("Ha Long"). Science has, however, proven that the island landscape was formed during the last Ice Age through the sinking of the South-West Chinese limestone plateau.
