Yarimikan is a wonderfully traditional onsen ryokan (hot-spring inn) on the Kamata-gawa, with two indoor baths, eight riverside rotemburo (outdoor baths; some available for private use) and 15 rooms. Guests can bathe 24 hours a day (it's stunning by moonlight) and day visitors (¥600 including towel rental) are accepted between 10am and 2pm. Cuisine features local Hida beef and grilled freshwater fish.
It's just off Rte 475, a few kilometres before the Shin-Hotaka Ropeway.