Ume no Yu
Time Out says
Directly connected to Kabe Station out in the western wilds of Ome, Ume no Yu is great for washing off the dirt after a long hiking trip in the mountains. They've got a nice selection of open-air onsen baths, plus two saunas and a very good Japanese restaurant – the soba and udon are particularly great value.
10-8-1 Kabemachi, Ome-shi
|Transport:||Kabe Station (Ome line)|
|Price:||¥860, children ¥430 (after 9pm ¥560/¥215)|
|Opening hours:||10am-11.30pm / closed 3rd Wed of every month|