Akane
What else is there to see in Oku Hida besides going to soak in the hotsprings?
Akane
You could go to the Oku Hida Bear Park? Or you can roam around the city-area of Hida Takayama. There's a part in the city with lots of old houses and stores which is pretty interesting. And of course you could go enjoy the surrounding nature.
http://www.hida.jp/english/activities/sightseeing-information