Map & Getting to Phong Nha Ke Bang national park

- From Dong Hoi head 20km north on Hwy 1A to Bo Trach and then turn west for the 30km to Son Trach. Some hotels in Dong Hoi offer tours, but a cheaper option is by motorbike.

- The actual cave entrance is 3km by river from Son Trach. The one-way ride takes about 30 minutes and gives a great glimpse of the life of river people. Overall, it takes about two hours to visit the river cave, or about four hours with a trip to the dry cave too.