Phong Nha-Ke Bang National Park is one of the most spectacular wilderness sites in South East Asia and one of the largest limestone regions in the world.
Destined to become one of Vietnam’s major tourist attractions, a vast network of underground caves and passages can be found, along with awesome jungle scenery and fascinating rock formations. This beautiful and little-explored region contains the world’s longest river cave, Hang Ke Ry and the world’s largest cave, Hang Son Doong.
Hang Son Doong was discovered in 2009, explored in 2010 by a British caving team and now open to a limited but growing number of tourists annually since 2014.