Halong Bay is one of the world’s natural wonders, and is the most beautiful tourist destination of Vietnam. Halong Bay features more than one thousand awesome limestone karsts and islands of various sizes and shapes along the 120-km coastline of Bai Chay Beach. Ha Long Bay is located in Quáng Ninh province, Vietnam. The bay features thousands of limestone karsts and isles in various sizes and shapes. The bay has a 120 kilometre long coastline and is approximately 1,553 square kilometers in size with 1969 islets. Several of the islands are hollow, with enormous caves, other support floating 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 drowned dolines within fengcong karst.Halong Bay at greater length will give you a more holistic view of the destination and help you appreciate what you are seeing even more. Halong In Depth is also a place where you can explore the different option for touring the Bay: Adventure tourism, community based tourism and eco-tourism.