Ha Long Bay is in Quang Ninh province.It has many islands and caves.The island are named after things around us!In the bay, you can see the island of Hen Chicken (Drum Roof), even the island of Human Head. You have to sail around the island - it's absolutely necessary! Tuan Chau is the largest island in Halong Bay, where you can eat a variety of delicious Vietnamese seafood. You can watch traditional dance. You can participate in interesting activities. Ha Long Bay is the most beautiful natural wonder in Vietnam.