Phong Nha - Ke Bang National Park is located in Quang Binh province. Besides the historical value of geology, topography, geomorphology, Phong Nha-Ke Bang has twice been 2 recognised by UNESCO as a Natural World Heritage Site.
Son Doong cave is considered the world's largest cave with the height of about 200 metres, in some places it can reach up to 250 m. The cave has the length of at least 8.5 kilometres. According to Business Insider magazine, Phong Nha Ke Bang has a lot of potential, and needs a sustainable long-term tourism strategy to attract visitors.
