This is a large limestone cave famous for its stalactites and stalagmites, and it is located 9 km to the northeast of Lakeside. A British expedition team first explored this place in 1978 and again by Daniel Gebuer in 1980. The length of the cave is 215 meters and stretches over 50 ropanies of Land. The width of the entrance is 16 meters whereas its average width is about 3.5 meters. In the beginning, this cave was called Bat Cave by the local people. Later on, it was named after the then King Mahendra, who visited the natural wonder in 1960.