Right Onsen › Oita › Saiki
Natural Seawater Bath Shio-Yu
4.3★ · 26 Google ratings · Saiki, Oita · 天然海水風呂 塩湯
✓ Day visitors✓ Outdoor bath✓ Private bath✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesConfirmed by recent visitor reports
Hours
Not publishedCall ahead
Tattoos
? Call aheadNo policy stated in the 18 recent reviews we read
Price
¥500 adultConfirmed by recent visitor reports
Private bath
✓ AvailableConfirmed by recent visitor reports
How we know this
- Day visitors: Visitors bathe as day guests alongside dining at the attached restaurant. · 3 visitors, Jan 2024 – Aug 2026
- Price: Multiple visitors from 2025-2026 report a 500 yen adult admission fee. · 3 visitors, Mar 2026 – Aug 2026
- Private bath: A separate family/private bath exists alongside the main communal bath. · 3 visitors, Oct 2024 – Mar 2026
The bath
What you’ll find
This is a seawater bath (not a natural hot spring) attached to a popular seafood restaurant, offering indoor, outdoor, and cold plunge baths plus a sauna for about 500 yen, with ocean views.
Bath setup
Outdoor bath
✓ YesConfirmed by recent visitor reports
Sauna
✓ YesConfirmed by recent visitor reports
Cold bath
✓ YesConfirmed by recent visitor reports
Private bath
✓ YesConfirmed by recent visitor reports
View
OceanConfirmed by recent visitor reports
Spring water
Spring type
chlorideReported by one visitor
How we know this
- Outdoor bath: Reviewers describe an outdoor or semi-outdoor bath with ocean views. · 3 visitors, Oct 2024 – Aug 2026
- Sauna: A sauna is included in the regular admission fee. · 3 visitors, Oct 2024 – Jul 2026
- Cold bath: A seawater cold plunge bath is available alongside the sauna. · 3 visitors, Nov 2024 – Jul 2026
- Private bath: A separate family/private bath exists alongside the main communal bath. · 3 visitors, Oct 2024 – Mar 2026
- View: The bath faces the ocean directly, praised for its scenic view. · 3 visitors, Nov 2025 – Aug 2026
- Spring type: One reviewer described the water as slightly viscous chloride-type seawater. · 1 visitor, Aug 2026
Practical
What you need
Soap & shampoo
✓ ProvidedShampoo, conditioner and body soap are provided at the wash stations.Confirmed by recent visitor reports
Lockers
✓ FreeLockers are free to use but only a couple have working locks.Reported by two visitors
Hair dryer
✓ YesA hair dryer is available, though sometimes only one for the whole changing room.Confirmed by recent visitor reports
Facilities
Restaurant
✓ YesConfirmed by recent visitor reports
How we know this
- Soap & shampoo: Shampoo, conditioner and body soap are provided at the wash stations. · 3 visitors, Aug 2025 – May 2026
- Lockers: Lockers are free to use but only a couple have working locks. · 2 visitors, Mar 2026 – May 2026
- Hair dryer: A hair dryer is available, though sometimes only one for the whole changing room. · 5 visitors, Nov 2024 – Aug 2026
- Restaurant: The bath is attached to a well-known seafood restaurant with shared facilities. · 3 visitors, Aug 2025 – Aug 2026
Getting there
How to get there
Nearest station
Azamui · JR KyushuAbout 18 min on foot, 1.4 km in a straight line
Address
2601 879 Kamiura Oaza Azamuiura, Saiki, Oita 879-2601From the facility's listing
Show a driver
天然海水風呂 塩湯The name in Japanese, for a taxi or at the counter
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Questions
Common questions
Can I visit Natural Seawater Bath Shio-Yu without staying overnight?
Visitors bathe as day guests alongside dining at the attached restaurant.
How much does Natural Seawater Bath Shio-Yu cost?
Multiple visitors from 2025-2026 report a 500 yen adult admission fee.
