Placed in northern Vietnam, Ha Long Bay is located 170 km from the city of Hanoi. It is a famous site with interesting karst structure, which is part of the UNESCO Heritage List and is also included in the List of the World Natural Wonders. Ha Long Bay is translated in English as the Descending Dragons Bay and it consists of as many as 1969 islands. Some of them are inhabited by people and some are not, they differ in shape and in size and they can be accessed by boat from many ports. The largest of the Ha Long Bay islands are four and these are Ban Sen, Cat Ba, Van Don and QuanLan. The attractions in the area of Ha Long Bay are numerous, thus travelers from Paris apartments or central London apartments should plan at least several days.