If you are planning to explore Phong Nha Cave, you should calculate costs in two parts: entrance tickets and boat transport fees on the Son River. This is the most important item in your trip budget, as a boat is mandatory to take visitors into the cave area.
According to information from the Phong Nha – Ke Bang Tourism Center and operating units, the 2026 price rates are recorded as follows:
Phong Nha Cave Entrance Ticket
Adults: 150,000 VND/person
Children under 1.3m: Free admission
The entrance ticket does not include the boat fee. To enter Phong Nha Cave, visitors must travel by boat along the Son River. Therefore, if traveling in a large group, sharing the boat fee among members will be significantly more economical.
Phong Nha Cave Sightseeing Boat
700,000 VND/boat/round trip
Maximum 12 people, life jackets included
If you go in a group of 10–12 people, the boat fee is distributed among more people, significantly saving the total cost per guest. This is also why groups of friends, families, or tour groups often choose to travel together instead of going individually.



