Designated a Unesco World Heritage Site in 2003, the remarkable Phong Nha-Ke Bang National Park contains the oldest karst mountains in Asia, formed approximately 400 million years ago. Riddled with hundreds of cave systems – many of extraordinary scale and length – and spectacular underground rivers, Phong Nha is a speleologists’ heaven on earth.
Infants are required to sit on an adult’s lap. Not recommended for travelers with spinal injuries. Not recommended for pregnant travelers. Not recommended for travelers with poor cardiovascular health. Suitable for all physical fitness levels