Super sento
Akigawa Keikoku Seoto-no-yu
565 Otsu, Akiruno-shi, Tokyo 190-0174
Tattoos not permitted (official)
About
A day-use hot-spring bathhouse in the Akigawa Valley within a national park, a roughly 17-minute Nishi-Tokyo Bus ride from JR Musashi-Itsukaichi Station (get off right in front at the "Seoto no Yu" stop). A natural alkaline simple hot spring (pH 10.01) drawn from 1,500m underground feeds a source-fed indoor bath and an open-air bath overlooking the Akigawa Valley. A small outdoor sauna, shared by men and women, sits next to the open-air bath along with a cold bath. The facility also has the restaurant "Ishibune Dining," the rest-area cafe "Seseragi," a body-care room, free parking (135 spaces), and overnight cottages about 50m from the bathhouse building. Bathing admission runs on a 3-hour basis (extendable). Guests with tattoos, including cover stickers, are refused entry. Under a Tokyo ordinance, mixed-gender bathing is prohibited from age 7. There is no fixed weekly closed day; closures are announced individually via the official site's calendar.
Pricing
- Adult (weekday)
- ¥1,100
- Adult (weekend)
- ¥1,200
- Child
- ¥550
- Time limit
- 180 min
- Sauna surcharge
- ¥0
- Ganban'yoku surcharge
- Unconfirmed
- Late-night surcharge
- ¥0
- Towel
- Not included
- Roomwear
- Not included
The figures above are for 3-hour bathing admission. Extension costs ¥200/hour for adults and ¥100/hour for children. A discount is available with a disability certificate (¥400 adult / ¥200 child, every day; no discount for accompanying caregivers). Shoe-locker use is ¥100 per person (refunded on a returnable-token basis at exit). An 11-visit coupon book costs ¥11,000 (adult) or ¥5,500 (child). Preschool children enter free, but anyone wearing diapers, regardless of age, may not use the shared baths and may only use the private baths. Akiruno City residents receive a separate resident discount (unavailable during peak/New Year periods). Towels are sold only, not rented (face towel ¥300, exfoliating towel ¥200, bath towel ¥550), and there is no loungewear rental. Credit cards (VISA/Mastercard) and PayPay are accepted.
Opening hours
- Opening hours
- 10:00 – 22:00
- Last entry
- Unconfirmed
- Closed
- Unconfirmed
Reception hours are 10:00–22:00 (last entry 21:00) from April to November, and 10:00–21:00 (last entry 20:00) from December to March. There is no fixed weekly closed day; closures are set irregularly per the official site's closure calendar.
Sauna
- Sauna rooms
- Unconfirmed
- Cold plunge temperature
- Unconfirmed
- Open-air rest space
- ✓
Baths
- Spring type
- Alkaline simple hot spring
- Natural hot spring
- ✓
- Open-air bath
- ✓
- Carbonated bath
- Unconfirmed
- Baths
- Cold plunge
Facilities
- Facilities
- Restaurant / Rest area / Overnight stay / Massage / Parking
- Payment
- Credit card / QR payment
- Amenities
- Unconfirmed
- English signage
- Unconfirmed
Under a Tokyo ordinance, mixed-gender bathing is prohibited for children aged 7 and up (this applies to the private baths too, even for families). Anyone wearing diapers, regardless of age, may not use the shared baths and may only use the private baths. Preschool children bathe free.
Access
- Access
- Unconfirmed
- Airport access
- Unconfirmed