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6608 Manganji, Minamioguni-machi, Aso-gun, Kumamoto-ken 869-2402, Japan

Located deep in the mountains on a gorge in the Kurokawa river in Kumamoto Prefecture on the island of Kyushu, Shinmeikan offers a unique rustic onsen setting.


Shinmeikan is known in particular for its grotto pool which can be enjoyed by all guests.


Aside from the onsen in the cave, There are a variety of baths available – from large communal pools to private pools that can be booked by couples or families.