Compare an overnight stay with a confirmed day bath
The source names seven accommodation candidates also found in the tourism association’s directory: adex inn, Daiichi Takimotokan (第一滝本館), Noboribetsu Sekisuitei (登別石水亭), Hotel Mahoroba (ホテルまほろば), Takinoya Bekkan Tamanoyu (滝乃家別館 玉乃湯), Noboribetsu Manseikaku (登別万世閣), and Ryotei Hanayura (旅亭 花ゆら). Use them as a shortlist to compare, not as a ranking or a promise that their rooms and bathing arrangements are alike.
For the room you would actually book, check the bath access, meal inclusion and times, arrival deadline, bedding, total price and any transport arrangement. An old booking screenshot cannot confirm a current rate, room view, availability or shuttle. Leave enough time at the property if the stay is the main reason for coming.
Daiichi Takimotokan also publishes a day-bathing option, so an overnight booking is not the only way to include a bath. Check its current admission conditions, hours and rules before planning around it. The operator currently lists a day-bathing closure for April 5–15, 2027. This does not establish day-use access to other hotels or access to all facilities at the property.
Compare two complete plans for the same party: day-bathing admission plus your chosen accommodation, and an overnight plan at the bathing hotel. Check the total price, bath access, meal inclusions and arrival times for each. Choose the overnight plan for the room, meals or time at the property you want to use, rather than treating a room booking as the entrance fee for a bath visit.