Right Onsen › Oita › Yufu
Shimon-yu
4.2★ · 292 Google ratings · Yufu, Oita · 下ん湯
✓ Day visitors✓ Tattoos allowed✓ Outdoor bath✓ Kakenagashi
Before you go
Can you bathe here?
Day visitors
✓ YesConfirmed by recent visitor reports
Hours
10:00–20:00From the facility's listing
Tattoos
✓ AllowedReported by two visitors
Price
¥300 adultConfirmed by recent visitor reports
Bathing
Mixed bathingConfirmed by recent visitor reports
How we know this
- Day visitors: Day visitors regularly pay a 300 yen entry fee to use the bath, no reservation needed. · 3 visitors, Mar 2026 – Aug 2026
- Tattoos: Visitors reported people with tattoos bathing without any restriction. · 2 visitors, Apr 2025 – May 2026
- Price: Admission is 300 yen as of 2025-2026, up from 200 yen before a 2009 renovation. · 3 visitors, Apr 2025 – Nov 2025
- Bathing arrangement: The bath is unisex/mixed bathing with no separate male and female areas. · 5 visitors, Nov 2025 – Jul 2026
Atmosphere
The bath
What you’ll find
Shimon-yu is a thatched-roof mixed-bathing public bath by Kinrin Lake in Yufuin with a very hot indoor tub and semi-open outdoor tub for 300 yen; no soap, shampoo, or towels are provided, and bathing is unisex with no partitions.
Bath setup
Indoor baths
1.0Reported by two visitors
Outdoor bath
✓ YesConfirmed by recent visitor reports
Outdoor baths
1.0Reported by two visitors
Spring water
Spring type
alkaline simple springReported by two visitors
Source temperature
65.6°CSource temperature was recorded as 69.4C in an older measurement and 65.6C in a 2025 review, both extremely hot.Reported by two visitors
pH
pH 8.2Reported by one visitor
Free-flowing (kakenagashi)
✓ FullFresh spring water flows continuously through the bath
Water added
✓ YesBathers can add cold water via a tap to cool the very hot source water to a comfortable temperature.Confirmed by recent visitor reports
How we know this
- Indoor baths: There is one indoor tub alongside one outdoor tub. · 2 visitors, Jan 2026 – May 2026
- Outdoor bath: The facility has both an indoor bath and a semi-open-air outdoor bath. · 3 visitors, May 2025 – Jul 2026
- Outdoor baths: There is one outdoor tub alongside one indoor tub. · 2 visitors, Jan 2026 – May 2026
- Spring type: The spring is classified as a simple (tanjun) alkaline hot spring. · 2 visitors, Sep 2025 – Apr 2026
- Source temperature: Source temperature was recorded as 69.4C in an older measurement and 65.6C in a 2025 review, both extremely hot. · 2 visitors, Sep 2025 – Jun 2026
- pH: The spring water was measured at pH 8.2, mildly alkaline. · 1 visitor, Sep 2025
- Free-flowing (kakenagashi): Reviewers confirmed the water is genuine unheated source-fed (kakenagashi) hot spring. · 2 visitors, Jan 2026 – Jul 2026
- Water added: Bathers can add cold water via a tap to cool the very hot source water to a comfortable temperature. · 3 visitors, Jan 2026 – Aug 2026
Practical
What you need
Towels
Bring your ownVisitors must bring their own towel; none are provided or rented.Confirmed by recent visitor reports
Lockers
Lockers, but no locksReviewers reported open shelving without locks, though one visitor said there were no lockers at all.Reported by two visitors
Payment
✕ Cash onlyPayment is made by dropping cash into a coin box or vending machine slot, no card option mentioned.Confirmed by recent visitor reports
Facilities
Rest area
✓ YesReported by one visitor
How we know this
- Towels: Visitors must bring their own towel; none are provided or rented. · 3 visitors, Nov 2025 – May 2026
- Lockers: Reviewers reported open shelving without locks, though one visitor said there were no lockers at all. · 2 visitors, Mar 2026 – May 2026
- Payment: Payment is made by dropping cash into a coin box or vending machine slot, no card option mentioned. · 3 visitors, Nov 2025 – Apr 2026
- Rest area: A small bench-like resting spot was noted in the corner of the room. · 1 visitor, Jul 2026
Timing
When to go
Quietest Thursday around 18:00. Busiest Sunday around 13:00.
| 8A | 9A | 10A | 11A | 12P | 13P | 14P | 15P | 16P | 17P | 18P | 19P | 20P | |
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| WE | |||||||||||||
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| SU |
Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | 10:00–20:00 |
| Tuesday | 10:00–20:00 |
| 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 |
Getting there
How to get there
Nearest station
Yufuin · JR KyushuAbout 18 min on foot, 1.4 km in a straight line
Address
Yufuincho Kawakami, Yufu, Oita 879-5102From the facility's listing
Show a driver
下ん湯The name in Japanese, for a taxi or at the counter
Phone
+81977-84-3111Japanese-speaking. For tattoos or private baths a call is the only sure answer
The map loads only when you ask for it and connects your browser to Google.
Nearby
Other baths close by
Taisho Yufunohana / Secret Hot Springs: Drops of Heaven and Earth
4.6★ · 0.6 km
✓Day useTattoos ?✓Private bath✓Outdoor bath
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What matters
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Questions
Common questions
Does Shimon-yu allow tattoos?
Visitors reported people with tattoos bathing without any restriction.
Can I visit Shimon-yu without staying overnight?
Day visitors regularly pay a 300 yen entry fee to use the bath, no reservation needed.
How much does Shimon-yu cost?
Admission is 300 yen as of 2025-2026, up from 200 yen before a 2009 renovation.
Is the water free-flowing spring water?
Reviewers confirmed the water is genuine unheated source-fed (kakenagashi) hot spring.
