This newly added trek (early 2018) will send you to remote areas of the park which will lead you to Hang Pygmy and Hang Over caves. In fact, less people have been through those 2 caves than have stood on Mt Everest.
You will walk and scramble to explore the 3,5km of Hang Over and prusiking onto the massive cavern of Hang Pygmy, the 4th largest cave in the world. This trek is perfect for adventures looking for an exciting challenge with an incredible reward. You’ll trek, swim, and camp in the untouched Phong Nha-Ke Bang National Park.