Ha Long it mean “Descending Dragon “ Located in Quang Ninh province, 175km from Hanoi. Halong Bay has an area of around 1,553 km2, including nearly 2,000 islets, most are limestone. UNESCO 3 times recognized world heritage site. Believe me. You must visit Halong bay when you come to Vietnam. Let’s Goviettrip help you get the best trip!!!