Koyanagi, Aomori City, Aomori
Koyanagi Onsen
A locally oriented bath near Koyanagi Station, useful for a simple soak on the east side of Aomori. Current information lists a sulfate spring and combined source-flowing and recirculated supply; the research file does not confirm a tattoo policy.
Check before bathing
- Opening hours
- 10:00–22:00, listed as open daily. Adult admission ¥530. Koyanagi Station is about a 7-minute walk away.
- Tattoo policy
- No current tattoo policy was confirmed in the research file. Ask the operator before visiting.
Spring & water temperature
- Spring-source temperature
- Not published as a current figure.
- Bathing temperature
- Not published.
- Spring source
- Koyanagi Onsen; an individual source name is not published.
- Spring classification
- Calcium-sodium sulfate spring, according to updated 2026 material.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- Aomori City tourism information describes a combination of source-flowing water and recirculation. The current facility file does not provide a pool-by-pool treatment breakdown.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
