With the recognition of Phong Nha–Ke Bang as a UNESCO World Biosphere Reserve, Vietnam now has a total of 12 biosphere reserves recognized by UNESCO, making it one of Southeast Asia’s leading nations in biosphere conservation and sustainable development.
Covering nearly 516,000 hectares across 15 communes in Quang Tri Province, the Phong Nha–Ke Bang Biosphere Reserve is considered one of Southeast Asia’s most representative tropical rainforest ecosystems on limestone mountains. The area is home to rich biodiversity, with thousands of fauna and flora species, many of them rare and endemic.
Phong Nha–Ke Bang is also renowned for its spectacular cave systems, with nearly 500 caves discovered to date. The site possesses outstanding geological, geomorphological, and scenic value. It was previously recognized twice by UNESCO as a World Natural Heritage Site, in 2003 and 2015.
