UNESCO: Phong Nha, Ke Bang National Park
Phong Nha – Ke Bang is a national park in the center of Quang Binh province in north-central Vietnam. It is one of the world’s two largest limestone regions with several hundred caves and grottoes.
Phong Nha – Ke Bang is a national park in the center of Quang Binh province in north-central Vietnam. It is one of the world’s two largest limestone regions with several hundred caves and grottoes.