Ha Long means descending dragon( in Vietnamese " Vinh Ha Long" was recognized by UNESCO as the world heritage site rated: 9/10(Excellent). It is located in the province of Quang Ninh, Vietnam, Halong bay became popular tourist attractions. Halong Bay has more than 1969 limestone islands and with different shapes. Halong Bay is the center of most large zone covering Bai Tu Long in southeast of Ha Long, and Cat Ba island in the southwest of Ha Long Bay. (click for your votes)

Islands rock in Ha Long Bay has been through 500 million years of formation in different conditions and environments. Karst in the Ha Long bay has been subject to 20 million years of evolution under the impact of tropics wet climate. The geo-diversity of the environment in the area has created biodiversity, Including a tropical evergreen bio system, oceanic and sea shore bio system. Surveys history has shown the existence of prehistoric humans in this region since tens of thousands of years ago.
The climate of the Ha Long bay is a tropical, wet, sea islands, with two seasons: hot and moist summer, and, dry and cold winter. Several of the islands are hollow, with enormous Caves, other floating support villages of fishermen, WHO ply the shallow waters for 200 species of fish and 450 different Kinds of mollusks. Another specific feature of Halong Bay is the Abundance of lakes inside the limestone islands, for example, Dau Be island has six enclosed lakes. All these island lakes occupy within fengcong Drowned karst dolines.