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Gensenya (formerly Yoakeyakuto Onsen)
4.1★ · 379 Google ratings · Hita, Oita · 源泉屋（旧夜明薬湯温泉）
✓ Day visitors✓ Private bath✓ Kakenagashi
Before you go
Can you bathe here?
Day visitors
✓ YesStated on the facility's website
Hours
10:00–20:00From the facility's listing
Closed
TuesdaysStated on the facility's website
Last entry
19:30Stated on the facility's website
Tattoos
Private bath onlyStated on the facility's website
Price
¥650 adultRecent visitor reports indicate a change. The official site still lists ¥600
Child price
¥400Stated on the facility's website
Private bath
✓ AvailableStated on the facility's website
Time limit
30 minutes free rest area, extra time chargedReported by two visitors
Bathing
Men and women separateConfirmed by recent visitor reports
How we know this
- Day visitors: Reviewers describe it as a day-use bathing facility that walk-in visitors can use. · stated on the facility's website, read 2026-09 · 2 visitors, Jan 2026 – Feb 2026
- Closed: stated on the facility's website, read 2026-09
- Last entry: stated on the facility's website, read 2026-09
- Tattoos: stated on the facility's website, read 2026-09
- Price: Adult admission has been 650 yen from late 2025 into 2026, though one reviewer noted an outdated website price. · 3 visitors, Dec 2025 – Feb 2026
- Child price: stated on the facility's website, read 2026-09
- Private bath: Family/private baths (4-5 rooms) can be rented for about 1300-1500 yen per 50-minute session. · stated on the facility's website, read 2026-09 · 3 visitors, Dec 2025 – Apr 2026
- Time limit: Use of the rest area is free for 30 minutes; staying longer incurs an extra fee. · 2 visitors, Feb 2026 – Apr 2026
- Bathing arrangement: Men's and women's baths are separated by a large rock partition, though the old shared ceiling means conversations can be overheard between sides. · 3 visitors, Feb 2026 – Jul 2026
The bath
What you’ll find
Gensenya (formerly Yoakeyakuto Onsen) is a small indoor day-use hot spring near Hita's Fukuoka border, known for a very smooth sodium bicarbonate-chloride spring, drinkable water, a medicinal bath, and reservation-only family baths; cash only.
Bath setup
Indoor baths
2.0Reported by one visitor
Outdoor bath
✕ NoReported by two visitors
Cold bath
✓ YesReported by one visitor
Private bath
✓ YesStated on the facility's website
Family bath
✓ YesStated on the facility's website
Spring water
Spring type
sodium bicarbonate-chloride springReported by one visitor
Source temperature
45°CReported by one visitor
pH
pH 7.9Confirmed by recent visitor reports
Free-flowing (kakenagashi)
✓ FullFresh spring water flows continuously through the bath
How we know this
- Indoor baths: The main bathing area has two indoor tubs, a large source-fed tub and a smaller medicinal-herb tub. · 1 visitor, Feb 2026
- Outdoor bath: Two 2026 reviews state there is no outdoor bath, though one visitor mentioned paying extra for an outdoor option, possibly a private bath. · 2 visitors, Jan 2026 – Apr 2026
- Cold bath: A 2026 reviewer mentioned cooling off in a cold bath between soaks. · 1 visitor, Jul 2026
- Private bath: Family/private baths (4-5 rooms) can be rented for about 1300-1500 yen per 50-minute session. · stated on the facility's website, read 2026-09 · 3 visitors, Dec 2025 – Apr 2026
- Family bath: stated on the facility's website, read 2026-09
- Spring type: The posted 2018 spring analysis classifies it as a low-temperature, weakly alkaline sodium bicarbonate-chloride spring. · 1 visitor, Feb 2026
- Source temperature: The posted spring analysis lists a source temperature of 45.0°C. · 1 visitor, Feb 2026
- pH: Most reviews and the posted analysis give pH 7.9, though one visitor recalled seeing pH 7.8 on the sign. · 3 visitors, Jan 2026 – Feb 2026
- Free-flowing (kakenagashi): Multiple 2026 reviews describe the bath as genuine source-fed (kakenagashi), with abundant hot spring flow. · 3 visitors, Feb 2026
- Full spring description: sodium bicarbonate-chloride spring (low-temperature alkaline)
Practical
What you need
Soap & shampoo
✓ ProvidedBody soap and shampoo are provided in the main communal bath, but family baths lack amenities and require bringing or purchasing your own.Stated on the facility's website
Lockers
Coin not returnedValuables lockers require a 100 yen coin that is not refunded.Confirmed by recent visitor reports
Hair dryer
✓ YesReported by two visitors
Parking
✓ Free on siteFrom the facility's listing
Facilities
Rest area
✓ YesConfirmed by recent visitor reports
Restaurant
✓ YesReported by one visitor
How we know this
- Soap & shampoo: Body soap and shampoo are provided in the main communal bath, but family baths lack amenities and require bringing or purchasing your own. · stated on the facility's website, read 2026-09 · 3 visitors, Jan 2026 – Apr 2026
- Lockers: Valuables lockers require a 100 yen coin that is not refunded. · 3 visitors, Feb 2026 – Apr 2026
- Hair dryer: Hair dryers are available for use free of charge. · 2 visitors, Feb 2026
- Rest area: There is a spacious tatami rest area available after bathing, free for the first 30 minutes. · 3 visitors, Feb 2026 – Jul 2026
- Restaurant: The rest area doubles as a small snack/light-food spot. · 1 visitor, Feb 2026
Timing
When to go
Quietest Thursday around 10:00. Busiest Sunday around 15:00.
| 8A | 9A | 10A | 11A | 12P | 13P | 14P | 15P | 16P | 17P | 18P | 19P | 20P | |
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| TU | |||||||||||||
| WE | |||||||||||||
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| SA | |||||||||||||
| SU |
Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | 10:00–20:00 |
| Tuesday | Closed |
| Wednesday | 10:00–20:00 |
| Thursday | 10:00–20:00 |
| Friday | 10:00–20:00 |
| Saturday | 10:00–20:00 |
| Sunday | 10:00–20:00 |
Closed Tuesdays.
Getting there
How to get there
Nearest station
Yoake · JR KyushuAbout 4 min on foot, 0.3 km in a straight line
Address
714-3 Kawashita, Hita, Oita 877-0067From the facility's listing
Show a driver
源泉屋（旧夜明薬湯温泉）The name in Japanese, for a taxi or at the counter
Phone
+81973-27-2809Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
yoake-yakuto.comOfficial, in Japanese
The map loads only when you ask for it and connects your browser to Google.
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What matters
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Questions
Common questions
Can I visit Gensenya (formerly Yoakeyakuto Onsen) without staying overnight?
Reviewers describe it as a day-use bathing facility that walk-in visitors can use.
How much does Gensenya (formerly Yoakeyakuto Onsen) cost?
Adult admission has been 650 yen from late 2025 into 2026, though one reviewer noted an outdated website price.
Is the water free-flowing spring water?
Multiple 2026 reviews describe the bath as genuine source-fed (kakenagashi), with abundant hot spring flow.
