What to expect During this tour?

Phong Nha cave Vietnam has high aesthetic and unique values, as evaluated by the British Royal Cave Association in 1997 with 7 highlights global criteria as follows: The longest wet cave. The highest and largest entrance of the cave. The largest and most beautiful sandy banks and reefs. The most beautiful underground lake. The most magnificent and miraculous stalactites. The most beautiful underground river. The cave with a high and large dry cave.