祝いの宿 登別グランドホテル
Three onsen waters and named saunas across two gender-swapping wings
Uses natural hot spring water
Enclosed indoor bathing area
A private bath you can reserve for yourself or your group
Day visitors can book the private bath, not only overnight guests
Day visitors can reserve the private family bath, but must also pay the regular day-bathing charge on top of the booking fee. There is only one such bath, so reserving ahead is recommended.
Private onsen bath in guest rooms, for overnight guests only
Some rooms have their own open-air bath, but it is filled with artificial mineral water rather than natural hot-spring water.
Shared bathing area for all genders
Welcomes children and families
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
Noboribetsu Grand Hotel splits its bathing into two wings, Hozukinoyu (鬼灯の湯) and Rindounoyu (竜胆の湯), that swap by gender each day. Both sides have a domed indoor bathhouse where sulfur, salty and iron-tinted water fill separate tubs, plus a garden open-air area with a rock bath and a hinoki wood tub, one of them by a small waterfall. Between the two sides there are three named saunas, including the signature Oni-sauna kept close to 110°C with automatic steam bursts, plus a lineup of cold plunges fed by mountain stream water: a hinoki wood tub, a kettle-shaped tub and a giant barrel tub that opens only in the warmer months and not to young children. A private, salty-water family bath can be booked separately, day visitors included, though there is only the one on site. It's a large resort hotel with several restaurants and buffet-style meals, and sauna fans come back for another overnight just for the bathhouse.
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Last updated September 29, 2026