Phong Nha cave is the most famous cave in Phong Nha Ke Bang national Park. It should be the first choice to visit when you come to this national park. This cave is considered as the longest wet cave in the world. We can see these stalagmites in many shapes. They are really wonderful, you will never forget. The Phong Nha cave tour is also known as one of the best boat tours in Phong Nha because you visit the cave by boat. You’ll notice that you’ll be taken to the cave by boat that makes its way smoothly across the mesmerizing Son River.
Besides Phong Nha cave, Dark Cave is also a very attractive cave. It is named Dark cave because it is made of mostly basalt (a black hard rock) in addition to limestone. Exploring Dark cave, you will have a chance to experience many exciting activities such as kayaking, zip-line, high-wire, mud bathing and swimming. Especially, the mud here is very good for the skin.