Phong Nha-Ke Bang is more than a National Park, it is a UNESCO World Heritage Site located in Quang Binh Province, north-central Vietnam. The result of earth crust development 464 million years ago it’s the oldest major karst formation in Asia.

Phong Nha-Ke Bang Park features a 2,000sqkm of limestone zone and an impressive grotto and cave system with a total length of 70km. The park is home to the Hang Son Doong Cave, the world's largest cave. Its biggest chamber is over five kilometres in length.

Covered mostly with tropical rainforest, Phong Nha-Ke Bang Park is one of the most important eco-regions of the Indo-Pacific. It also offers many significant geomorphic features including underground rivers, dendritic caves, dry caves, suspended caves and terraced caves. Many endangered animal species still roam the area including black bears, tigers and elephants.

Composed of 300 caves and grottos, Phong Nha-Ke Bang National Park offers countless activities, amongst them visiting caves and grottos by boat as well as mountain climbing and forest trekking. The park is huge and home to various interesting flora; many of which are hardly found elsewhere. This is a fine chance to learn more about rare and unusual species.