Phong Nha-Ke Bang National Park

Phong Nha-Ke Bang National Park is a UNESCO World Heritage Site in Bo Trach District, Quang Tri Province, central Vietnam. Covering over 123,000 hectares of limestone karst landscape, it is renowned for its extensive cave systems, including Son Doong, the world's largest cave, and Phong Nha and Paradise caves. The park features ancient karst formations dating back 400 million years, dense evergreen forests, underground rivers and high biodiversity.

Visitors can expect a vast limestone karst landscape with dense jungle, underground rivers and more than 300 caves and grottoes. Exploration is centered on boat trips into Phong Nha Cave, boardwalks in Paradise Cave (Thien Duong Cave) and Dark Cave, jungle trekking, and visits to the Botanical Garden. Facilities are concentrated at the park entrance and cave ticket wharves, with most cave visits requiring a boat and licensed guide.