VietNamNet Bridge - Discovered in 2005, the Heaven Cave is the longest dry cave in Asia. Located in the ecological restoration area of the Phong Nha-Ke Bang national park, Quang Binh province, the cave has been opened for tourists as of September 3.
The cave, 31km long, 191 metres above the sea level, has the most beautiful and spectacular stalactites in the park. Despite the robust geological tectonic process, the whole structure of the cave has still been persevered intact.
A 4.7 kilometres long forest road was built so that tourists can reach the destination on foot, by cross country bicycle or by host cart.

VietNamNet/Viet Nam News