Halong Bay meaning "Descending Dragon Bay" in Quảng Ninh Province, Vietnam, is a natural wonder of islets that is a UNESCO World Heritage site. The bay features thousands of limestone karsts and isles in various sizes and shapes. This group of 1969 islets having a coastline of 120 km extending over an area of 1,553 km². Most noticeable about Halong Bay is its exceptional seascape that changes color rapidly under the clear sky of a warm summer night.
