Iwaki Health Center
北投の湯 いわき健康センター
Super-sento style health center with many bath types and bedrock baths
Day Use
YesBathing is 10:00 to 24:00, last entry 23:00 (23:30 on Saturdays and days before holidays). No bathing after 0:00. A morning bath (asaburo, 朝風呂) runs 5:00 to 8:00 on Sundays and holidays only, with reception until 7:30; it may be paused on some holidays. Bedrock bath (ganbanyoku) is 10:00 to 23:00.
Adult entry with a towel is 1,500 yen on weekdays and 1,600 yen on weekends and holidays; with in-house wear and towel it is 1,700 yen. Children are 800 yen (850 on weekends and holidays), preschoolers 500 yen (530). Discounts apply after 19:00 and 22:00, and peak days cost more.
Bathing & Water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Bathing Arrangements
Shared bathing area for all genders
Policies & Services
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
Relaxation space for after bathing
Highlights
Ganbanyoku
Jet BathAbout
A big all-round health center in Obama, Iwaki, built for a full day out rather than a quick soak. The baths include a rock rotenburo, an indoor bath with Tokoname-ware pot tubs (tsubo-gama), a carbonated bath, a herbal bath (kanpo yakuyu), a tourmaline bath, a strong jet bath and a cold plunge, plus a Finnish-style sauna with löyly. There are three bedrock bath (ganbanyoku) rooms, with rock salt, ochre and Hokuto themes, and a relax room for lying around afterwards. The restaurant serves Japanese, Western and Chinese dishes, and the place also takes banquets and some overnight stays. Men's and women's baths are separate. Towels and in-house wear can be rented.
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Last updated October 11, 2026