Right Onsen › Oita › Taketa
Ganiyu
4.0★ · 435 Google ratings · Taketa, Oita · ガニ湯
✓ Day visitors✓ Outdoor bath✓ Kakenagashi
Before you go
Can you bathe here?
Day visitors
✓ YesConfirmed by recent visitor reports
Hours
00:00–24:00From the facility's listing
Tattoos
? Call aheadNo policy stated in the 42 recent reviews we read or on the facility's website
Price
Free adultConfirmed by recent visitor reports
Bathing
Mixed bathingConfirmed by recent visitor reports
How we know this
- Day visitors: Visitors across 2025-2026 report this is a free, always-open riverside bath with no admission process. · 3 visitors, Oct 2025 – Jul 2026
- Price: Multiple reviewers from 2025 to 2026 confirm entry is free of charge. · 3 visitors, Oct 2025 – Jul 2026
- Bathing arrangement: Reviews from 2025-2026 describe the bath as mixed-gender with no separation. · 3 visitors, Oct 2025 – Jul 2026
Atmosphere
The bath
What you’ll find
Ganiyu is a free, 24-hour open-air mixed-bathing hot spring set directly in a riverbed in Nagayu Onsen, with no walls, no dedicated changing room, and water that is usually only lukewarm; bathers are fully visible to passersby.
Bath setup
Outdoor bath
✓ YesConfirmed by recent visitor reports
View
RiverConfirmed by recent visitor reports
Spring water
Spring type
magnesium-sodium-calcium hydrogen carbonate springReported by two visitors
Bath temperature
36°CBathers in 2026 measured or estimated water temperature between about 35 and 38°C, generally on the lukewarm side.Confirmed by recent visitor reports
Free-flowing (kakenagashi)
Partly confirmedFresh spring water flows continuously through the bath
How we know this
- Outdoor bath: This is an entirely open-air pool set in a riverbed with no roof or enclosure. · 10 visitors, Oct 2025 – Aug 2026
- View: The bath sits directly in the river channel, so the surrounding view is of the riverbed and banks. · 3 visitors, Oct 2025 – Aug 2026
- Spring type: Reviewers cite the posted spring analysis as a magnesium-sodium-calcium hydrogen carbonate spring. · 2 visitors, Jul 2026
- Bath temperature: Bathers in 2026 measured or estimated water temperature between about 35 and 38°C, generally on the lukewarm side. · 3 visitors, Jan 2026 – May 2026
- Free-flowing (kakenagashi): One 2025 review calls it a source-fed flow-through bath, while a 2021/2026 review notes the water is now piped in and no longer carbonated, suggesting a possible change in supply. · 2 visitors, Oct 2025 – Jul 2026
Timing
When to go
Quietest Thursday around 3:00. Busiest Sunday around 13:00.
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Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | 00:00–24:00 |
| Tuesday | 00:00–24:00 |
| Wednesday | 00:00–24:00 |
| Thursday | 00:00–24:00 |
| Friday | 00:00–24:00 |
| Saturday | 00:00–24:00 |
| Sunday | 00:00–24:00 |
Getting there
How to get there
Nearest station
Asaji · JR Kyushu8.6 km in a straight line; bus or taxi from the station
Address
Naoirimachi Oaza Nagayu, Taketa, Oita 878-0402From the facility's listing
Show a driver
ガニ湯The name in Japanese, for a taxi or at the counter
Phone
+81974-64-1400Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
taketa.guideOfficial, 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 Ganiyu without staying overnight?
Visitors across 2025-2026 report this is a free, always-open riverside bath with no admission process.
How much does Ganiyu cost?
Multiple reviewers from 2025 to 2026 confirm entry is free of charge.
Is the water free-flowing spring water?
One 2025 review calls it a source-fed flow-through bath, while a 2021/2026 review notes the water is now piped in and no longer carbonated, suggesting a possible change in supply.
