This is one of the best stays we have experienced in any country. We stayed as a couple and the highlight (besides snow monkeys!) was the exquisite hospitality of the staff. The accommodation is luxurious, peaceful, and relaxing. We enjoyed the food immensely and the overall privacy of our room and our own private dining room is very VIP. The food was sourced from local sources and was beautifully presented in several courses.
Stay for two nights if you really want to relax!
Stayed at Jinpyokaku, Kanbayashi Onsen, Nagano.