Photo: photo: Qurren (talk) Taken with Canon PowerShot G9 X · CC BY-SA 4.0 · Wikimedia Commons
Iiyama Yutaki Onsen
Iiyama Yutaki Onsen is a hot spring town in Nagano, Japan. The water leaves the ground at 37.5°C, comfortably warm. It measures pH 8.6 — mildly alkaline, the slippery kind. Officially the water is classed as simple spring.
The water here
Simple spring
Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.
More photographs
From Wikimedia Commons. Tap a photo for the photographer and licence.
Things to see nearby
Places from Wikidata, photographs from Wikimedia Commons. Distances are in a straight line from the town.
With tattoos
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.
Where to stay
Hot spring towns nearby
Similar water elsewhere
The numbers
- Water temperature
- 37.5°C
- pH
- 8.6 (mildly alkaline)
- Address in Japanese
- 長野県飯山市一山1898
Figures from the town's Japanese Wikipedia article.
Where it is
36.9355, 138.4190 — open the map
Read more
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.