The Ha Long Bay is located in Quang Ninh Province in Vietnam. The name of the bay is roughly translated to descending dragon in Vietnamese. The bay is a UNESCO World Heritage and is lined by over a 1,600 limestone islands and islets.  Ha Long Bay is one of the most popular tourist destinations and is visited by hudreds or thousand of tourist each year. You can opt for a boat cruise that will take you close to a lot of these islets. 1. Is it UNESCO World Heritage Site? 2. How many island and islest is it lined by?  3. Is it one of the most popular tourist destinations?