Mitsugo Cavern (三ツ合鍾乳洞) is a cavern located in Yozawa Valley. It has 120m long. There is a waterfalls in this cavern called Doragon's falls.

Tourist Info.
Admission: 400 yen
Open: close at the sunset.
There is a parking.

Access
0. at JR Itsukaichi Station.
1. use Local bus to Mitsugoshonyudo
2. walk west 15 min.