Phong Nha – Ke bang is located about 50 km in the northwest from Dong Hoi city with mysterious and majestic landscapes, dry and floating caves resembling a wonderful painting of nature. Phong Nha – Ke Bang is recognized by UNESCO as a World Natural Heritage on July 5, 2003.
Especially, Son Doong Cave which belongs to the Phong Nha – Ke Bang grotto system is one of the most beautiful natural caves and the largest ever found in the world.