十勝川温泉 富士ホテルとかちがわおんせん ふじホテル
Hours may change during Golden Week, year-end/New Year, Obon, and similar periods. No regular closing day listed.
Adult ¥700, children (3-12 yrs) ¥500. Day-use set ¥1,000. Sauna from 16:00.
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Private bath available for day-use visitors or hotel guests to reserve
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Relaxation space for after bathing
On-site or nearby parking available
The bathing here is built around a single indoor pool fed by the hotel's own moor spring, run kakenagashi with nothing added or removed. The water is amber-colored and leaves skin noticeably smooth, the kind of quality the place openly bets its reputation on. No outdoor bath, just this one well-tended indoor tub and a sauna. Private baths (kashikiri, 貸切風呂) are available by reservation, reportedly the only ones in Tokachigawa Onsen.
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Last updated July 22, 2026