Photo: Soica2001 (talk) · Public domain · Wikimedia Commons
Iwao Onsen
Iwao Onsen is a hot spring town in Hokkaido, Japan. The water leaves the ground at 14°C, cool enough that the baths here are usually reheated. It measures pH 3.5 — acidic. Officially the water is classed as acidic spring. Its sources put out around 140 litres a minute. 2 inns take visitors here.
Getting there
- Train to Rumoi Station (JR)
- Local bus
The water here
Acidic spring
Strongly acidic, sometimes below pH 2. It stings on cuts and is not for long soaks.
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
- 14°C
- pH
- 3.5 (acidic)
- Discharge
- 140 litres a minute
- Inns
- 2
- Address in Japanese
- 北海道増毛郡増毛町岩老 {{Location map many | Japan Hokkaido | relief = 1 | caption = | widt
Figures from the town's Japanese Wikipedia article.
Where it is
43.7741, 141.3687 — open the map
Read more
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.