Phong Nha Cave has been regarded by British Cave Research Association as the top cave in the world due to its 4 top records: the longest underground river, the highest and longest cave, broadest and most beautiful fine sand beaches inside the caves, the most spectacular stalagmites and stalactites. Once you reach at the entrance of cave, you will feel like you are entering in the mouth of mountain.
Phong Nha Cave is not only a natural legacy of the world or a wonder of the country Vietnam but also the historical history in the past, Ho Chi Minh trail history which collaborates with Xuan Son Ferry in order to create a route supporting for the battleground of the South Vietnam during US War. Today, this place has become the first section of Ho Chi Minh trails. Therefore, coming to Phong Nha means you are visiting this legendary trails.