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Getōkōgen Onsen Villages is a hot spring town in Iwate, Japan. It measures pH 7.8–8.8 — mildly alkaline, the slippery kind. Officially the water is classed as simple spring.
Access is cut off in winter. Check before planning a cold-season trip.
Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.
Many public baths still turn away visible tattoos, and the rule is set by each bath, not by the town. The reliable way round it is to bathe privately: a room with its own open-air bath, or an inn with a private bath you can book for yourselves.





Figures from the town's Japanese Wikipedia article.






Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.