7:00am Picked up at the hotel in Hue and proceed to Dong Hoi City in Quang Binh Province for visiting Phong Nha Caves, a World Natural Heritage is recognized by UNESCO.
Take a boat cruise on the Son River to visit Phong Nha Cave with its grottos. Stop to visit Cung Dinh cave, Tien Cave and Bi Ky Cave with beautiful limestone formations.
Enjoy lunch at the local restaurant.
On the way back to Hue via Quang Tri Province, stop for visiting Hien Luong Bridge and Ben Hai River which is located on the 17th parallel. This is a chance to get more experiences of Vietnam history and people in the time of the war in 20th Century.
Arrive in Hue in the evening. End of services. Finish your Ke Bang National Park – Phong Nha Cave tour.