VietNamNet Bridge – A local man has discovered a new cave inside Phong Nha, the world natural heritage site in Quang Binh province, according to the Management Board of Phong Nha - Ke Bang National ...

The world’s largest cave is over five miles long - so big that even a Boeing 747 could fit inside it. Hang Son Doong is in Phong Nha-Ke Bang National Park in Vietnam, near the border with Laos ...

“Phong Nha is developing very fast,” he said. “Fifteen years ago there was nothing here, tourists would come, see one cave and leave. Now there are a lot of buildings and hotels and activity ...