Vịnh Hạ Long or the Bay of the Descending Dragon is a UNESCO World Heritage Site featuring thousands of limestone pillars, islets and islands that have gone through 500 million years of formation.
The legend tells the story of a family of great dragons sent by the gods to assist the people in defending Vietnam when it had just started to develop into a country. The dragons began spitting out precious stones that turned into islands and islets, linking together to create a great barrier against invaders. The dragons became fascinated with the peacefulness of the earth and decided to stay and live in Ha long Bay.
The bay is located in Quáng Ninh province and has a 120 kilometre long coastline, 1553 square kilometres in size and over 1900 islets. Enormous caves, thick jungle vegetation, two unique ecosystems and a mystical atmosphere permeate the area. About 1600 people inhabit the four fishing villages located around Ha Long Bay, living on floating houses and making their income mainly from fishing activities and marine aquaculture.