Accommodation
And hereunder has some more information.
Tohoku (Aomori, Iwate, Akita, Miyagi, Yamagata, Fukushima)
Kanto (Tokyo, Chiba, Ibaraki, Tochigi, Gunma, Saitama, Kanagawa, Yamanashi)
Chubu (Niigata, Toyama, Ishikawa, Fukui, Gifu, Aichi, Mie, Nagano, Shizuoka)
MinamiUonuma
"Temple" Inn
Kawabata Yasunari
Sado island
Toyama
Gokayama nearby Shirakawago
Ishikawa Noto Wajima
Ishikawa Noto Wakura Onsen (closed for a while)
Takamine Onsen
Nagano Matsumoto Marumo
Nagano Suzaka
Togura Kamiyamada Onsen
Bessho Onsen
Yudanaka Onsen
Kamikochi
Gifu Tanekura
Gifu OkuHida
Gifu Hidanomori