Ha Long Bay is one of Vietnam's tourist destinations recognized by UNESCO as a World Natural Heritage. It is located in Quang Ninh province in the northeast of Vietnam. It has many islands and caves.The islands are named after things around us. You can find Rooster and Hen Island (Trong Mai Island) and even Man's Head Island (Dau Nguoi Island) in the bay. Tuan Chau is the biggest island in Ha Long Bay .Moreover Ha Long Bay has some famous caves, and it is waiting for you to discover it. You must take a boat ride around the island! Tuan Chau is the biggest island in Ha Long Bay. There you can enjoy great Vietnam seafood. You can join exciting activities. Ha Long Bay is Vietnam's most beautiful natural wonder.