Chay River is located within the Chay River - Dark Cave tourist area, about 25km from the Phong Nha tourism center and 75km from Dong Hoi city. One of the tributaries of the Son River, with a length of only about 10km, Chay River stands out for its uniquely blue water and beautiful natural scenery. Notably, since September 2014, the Management Board of Phong Nha - Ke Bang National Park constructed a zipline system at the Chay River - Dark Cave boat station, attracting much attention from tourists. This is a free-hanging zip line setup featuring two of the longest cables in Vietnam, offering unique and exciting experiences. The zipline system here includes two routes: a 400m-long zipline route and a short zipline route. This is an adventurous, thrilling experience and a great opportunity to explore the pristine natural beauty of this area.



