Day Use
YesLast admission is at 7:30am. The baths stay open until 8:00am, while the ganbanyoku (hot-stone) rooms close earlier, at 1:00am.
Adults (junior-high age and up) pay 950 yen on weekdays and 1,100 yen on weekends, holidays, and special days; this includes a bathing robe and a full towel rental set. Early-morning entry (5:00-9:00) is 650 yen. A late-night surcharge applies from 1:00-5:00: 1,500 yen (Sunday to Thursday and holidays) or 1,800 yen (Friday, Saturday, and the day before a holiday or special day), also with a robe included. Child and infant rates are available too.
Bathing & Water
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
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
4 private family-bath rooms (with sauna and cold bath per aggregator listing); a Google reviewer separately praised the 'private onsen rental' for families
Shared bathing area for all genders
baths are gender-separated (men's/women's); no mixed bathing mentioned anywhere across any source checked
Policies & Services
Allows entry with visible tattoos
stated informally by one 2024 reviewer; not confirmed on the official site (unreachable) or any aggregator page checked; the same reviewer had tattoos and was not turned away in practice
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
full rental-towel set is included in the day-use admission price
Relaxation space for after bathing
On-site or nearby parking available
Highlights
Ganbanyoku
Jet Bath
Steam Sauna
Foot BathAbout
Honoka is a large day-use bathhouse in Iwamizawa, split into men's and women's sides. The onsen water is drawn on the grounds, and reviewers describe it as salty and smooth on the skin. The outdoor area has several small pools, including a pot bath, a seated bath, a salt bath, a high-concentration carbonated pool, and a foot bath, and the indoor side adds a jet bath and single-person carbonated tubs. There are three kinds of sauna (a high-temperature room, a barrel sauna, and a women-only steam salt sauna), two cold plunges, and a few ganbanyoku hot-stone rooms. Four private family bath rooms, each with its own small sauna and cold bath, can be rented for a quieter soak. A dining hall and a rest area with manga to read round out the complex, which reopened after a renovation in 2023.
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Last updated July 30, 2026