The meaning of "Ha Long", in Vietnamese, Ha means "descend", and "Long" means "dragon", so the word HaLong means "where the dragon descends into the sea".
HaLong Bay Descending dragonLegend has it that the islands of HaLong Bay were created by a giant dragon who lived in the mountains. As he ran towards the coast, his flailing tail gouged out valleys and crevasses; as he plunged into the sea, the areas dug up by his tail became filled with water, leaving only bits of highland visible. The bay is even said to be inhabited by a mysterious marine creature of gargantuan proportions known as the Tarasque. HaLong Bay affords some of Vietnam's most spectacular scenery, including beautiful limestone formations, rock arches, gin-clear water, virtually scenery lagoons, sheer cliffs, peaceful coves, eerie caves, secluded strips of white, powdery sand, and thousands of limestone islets. Like sculpted cartoon characters, these islet are fancifully named: Frog Island, Face Island, Isle of Surprise, etc.