Enakyo is a gorge carved by the Kiso river which runs through Ena city and Nakatsugawa city in Gifu. About 20 kinds of giant strange and mysterious rocks stand on both sides of the Kiso river. There is also a sightseeing boat from which you can enjoy the beautiful scenery and magnificent views of Ena's nature. The boat ride lasts about 30 minutes and goes through Enakyo Gorge. This is a rare and geologically important place. There is also a mineral museum that is worth visiting.