Right Onsen › Oita › Nakatsu
Iwatoyu & cafe
4.3★ · 98 Google ratings · Nakatsu, Oita · 深耶馬温泉 岩戸湯
✓ Private day-use bath✓ Natural hot-spring water✓ Free-flowing source water
Before you go
Can you bathe here?
Day visitors
✓ YesVisitors pay an entrance fee and bathe without lodging, confirming day-use is offered.stated by 3 visitors · Mar 2024 – Mar 2026
Hours
10:00–20:00 · closed Tuesday, Wednesdayfrom the facility listing
Price
¥400Admission was 300 yen in 2022-2023 reviews but had risen to 400 yen by 2024-2026.stated by 3 visitors · Mar 2024 – Mar 2026
Bathing arrangement
Men and women separateMen's and women's baths are separate and are occasionally swapped between visits.stated by 2 visitors · Oct 2022 – Mar 2024
Time limit
1 hourA one-hour bathing time limit is posted, especially when the bath gets busy.stated by 2 visitors · Jun 2024 – Mar 2026
Tattoos
Not known · call aheadno policy stated in the 36 recent reviews we read
Watch out
Hair dryer
No hair dryer is provided at the bathhouse.
stated by 3 visitors · Oct 2022 – Mar 2024Soap & shampoo
Some visitors found only soap available while others reported neither soap nor shampoo, so bring your own toiletries.
stated by 3 visitors · Oct 2022 – Aug 2026Lockers
There are no lockers, so visitors must watch their own valuables.
stated by 2 visitors · Oct 2022 – Jun 2024Restaurant
An attached cafe serves cakes, parfaits and drinks after bathing, though it is sometimes closed unexpectedly.
stated by 2 visitors · Oct 2024 – Jan 2025Time limit
A one-hour bathing time limit is posted, especially when the bath gets busy.
stated by 2 visitors · Jun 2024 – Mar 2026The bath
What you’ll find
Iwatoyu is a small day-use onsen bathhouse with an attached dessert cafe in Yaba-kei, known for warm, brown moor-spring (mogal) water; bring your own shampoo and towel.
Indoor baths
1The bathhouse has a single small indoor tub.stated by 1 visitor · Jul 2024
View
MountainLarge windows look out over rice fields and surrounding mountains.stated by 2 visitors · Oct 2022 – Dec 2024
Rest area
✓ YesThere is a tatami seating area with a view where visitors can relax after bathing.stated by 1 visitor · Aug 2023
Restaurant
✓ YesAn attached cafe serves cakes, parfaits and drinks after bathing, though it is sometimes closed unexpectedly.stated by 2 visitors · Oct 2024 – Jan 2025
The water
Free-flowing (kakenagashi)
✓ YesMultiple visitors describe the bath as fully source-fed kakenagashi with fresh spring water constantly flowing in.stated by 3 visitors · Dec 2022 – Jul 2024
Spring type
Moor spring (mogal-sen)The spring is repeatedly identified as a brownish, slightly viscous moor-type (mogal) mineral spring.stated by 3 visitors · Oct 2022 – Mar 2026
Practical
What to bring
Soap & shampoo
Not provided — bring your ownSome visitors found only soap available while others reported neither soap nor shampoo, so bring your own toiletries.stated by 3 visitors · Oct 2022 – Aug 2026
Lockers
NoneThere are no lockers, so visitors must watch their own valuables.stated by 2 visitors · Oct 2022 – Jun 2024
Hair dryer
NoNo hair dryer is provided at the bathhouse.stated by 3 visitors · Oct 2022 – Mar 2024
Timing
When to go
| Day | Hours |
|---|---|
| Monday | 10:00–20:00 |
| Tuesday | Closed |
| Wednesday | Closed |
| Thursday | 10:00–20:00 |
| Friday | 10:00–20:00 |
| Saturday | 10:00–20:00 |
| Sunday | 10:00–20:00 |
Closed Tuesday, Wednesday.
Practical
Plan your visit
📍 3216-2 Yabakeimachi Oaza Shinyaba, Nakatsu, Oita 871-0422
🚃 Bungo-Mori station, 10.9 km
📞 +81979-55-2923
📋 Show at the counter: 深耶馬温泉 岩戸湯
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