Tamagawa, Hagi, Yamaguchi
Tamagawa Onsen Ikoi-no-Yu
A practical stop for drivers, campers and RV travellers heading north from central Hagi. It pairs a garden-style outdoor bath with a saline cold mineral spring at a lower price than a seafront ryokan bath.
Check before bathing
- Opening hours
- Ages 13 and over ¥550; elementary-school children ¥250; younger children ¥100. Open 10:00–21:00, last entry 20:30; closed Mondays, moving to Tuesday when Monday is a holiday. Since July 2024, the men's and women's bath areas have alternated every two weeks, including which side has the sauna. The HAGI Travel Pass lists adult admission at ¥350 instead of ¥550.
Spring & water temperature
- Spring-source temperature
- 20.7°C
- Spring classification
- Sodium-calcium chloride cold mineral spring; high concentration and neutral classification.
- pH
- 6.8
- Water handling
- A 2022 analysis sheet records iron and manganese removal before the water is sampled. Current official text does not publish heating, circulation or disinfection details for each bath.
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.
