The Water Cave and Thien Ton Grotto lie inside the two mountains adjacent to each other, Nuoc and Mieu, in the complex of 99 mountains in Ngoc Luong commune, Yen Thuy district. Inside the Thien Ton Grotto are a numerous stalagmites and stalactites in marvellous and fascinating shapes. The cool, clear water in the cave infiltrates hundreds of meters into the mountain.
The Imposing Mountains in front of Thien Ton Grotto
