World’s largest cave discovered in Vietnam part1
Discover the largest cave tour In mid- April 2009, British caving team leading by Howard Limbirt have explored Son Doong Cave in the Phong Nha – Ke Bang World Natural Heritage site, 50km from Dong Hoi, Quang Binh. At 150m hight, 140m wide, and over 5km long, the cave is believed to be the world’s [...]
