"Cave's floor are so strange. In others, the floor with broken stone lying about in disorder and in the way, difficulty walking, but here they are as flat as a man-made". Stalactites in the cave up to 30m, cave's ceiling high over 60m. These caves are located in Doong Area of the world natural heritage Phong Nha - Ke Bang. Two another caves also discovered by Ho Khanh in 1997, 1998. Cave 97 llong 765m, and Cave 98 long 750m. Ho Khanh leaded an explores team of Royal British come to visit in two caves in 2011. And they gave him the right to name the cave. The reason Ho Khanh name hang in the 97, 98 is to mark two years that he lost the forest and found two caves.