Super sento
Ofuro no Osama Hanakoganei
3-9-10 Hanakoganei-minamicho, Kodaira-shi, Tokyo 187-0003
Temporarily closed
Tattoos not permitted (official)
About
A day-use bathhouse in Hanakoganei-minamicho, Kodaira, 13 minutes on foot from Hanakoganei Station (Seibu Shinjuku Line). The natural hot spring "Osama no Yu," drawn from roughly 1,500m underground, is served source-fed in an open-air bath, a rock bath, a jar bath, and a reclining bath, alongside indoor baths such as a high-concentration carbonated bath and jet baths, for 16 baths in total. The facility also has two sauna rooms (Kings Sauna and a coral steam sauna) and "Ayanoiyashi," a stone-sauna bath with a manga and magazine library. The building houses a restaurant, relaxation services including body care, akasuri (body scrub), esthetic, and Thai massage, and parking for 162 vehicles (free, height limit 2.2m). Regular hours are 9:00-24:00 (last entry 23:00), open year-round. Guests with tattoos are not admitted. The facility is fully closed for renovation from April 1, 2026 through the planned reopening in autumn/winter 2026.
Pricing
- Adult (weekday)
- ¥1,050
- Adult (weekend)
- ¥1,300
- Child
- ¥430
- Time limit
- No time limit
- Sauna surcharge
- ¥0
- Ganban'yoku surcharge
- ¥800
- Late-night surcharge
- ¥0
- Towel
- Not included
- Roomwear
- Unconfirmed
The figures above are the general (non-member) rate. Members pay less (¥950 weekday / ¥1,180 weekend-holiday for admission; ¥750 weekday for the stone-sauna bath). A 10-visit admission ticket book costs ¥9,000; using it on a weekend or holiday requires an additional ¥100. Admission does not include a rental towel. The stone-sauna bath (9:00–23:30, last entry 22:30) costs ¥800 (general, weekday) and a 5-visit ticket book costs ¥3,500. For safety, elementary-school-age children or younger may not use the stone-sauna bath.
Opening hours
- Opening hours
- 09:00 – 24:00
- Last entry
- 23:00
- Closed
- —
The facility is fully closed for renovation from April 1, 2026 (Wed) through the planned reopening in autumn/winter 2026. The hours and closed-day information above reflect the official site's regular-operation listing prior to the closure.
Sauna
- Sauna rooms
- Unconfirmed
- Cold plunge temperature
- Unconfirmed
- Open-air rest space
- Unconfirmed
Baths
- Spring type
- Sodium chloride spring
- Natural hot spring
- ✓
- Open-air bath
- ✓
- Carbonated bath
- ✓
- Baths
- Jet bath / Reclining bath / Seated bath / Cold plunge
Facilities
- Facilities
- Ganban'yoku (heated stone bed) / Restaurant / Massage / Beauty treatments / Parking
- Payment
- Unconfirmed
- Amenities
- Unconfirmed
- English signage
- Unconfirmed
Elementary-school-age children or younger may not enter unaccompanied. Mixed-gender bathing is not permitted for elementary-school-age children or those 120cm or taller. For hygiene reasons, guests wearing diapers (including children) may not bathe.
Access
- Hanakoganei Station (Seibu Shinjuku Line)
- Seibu Shinjuku Line / 13 min walk
- Airport access
- Unconfirmed