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Kōjiro Onsen

Toyama · 神代温泉

Kōjiro Onsen is a hot spring town in Toyama, Japan. The water leaves the ground at 46°C, hot. It measures pH 7.23 — close to neutral. Officially the water is classed as chloride spring and iron spring. Its sources put out around 32 litres a minute.

Getting there

From Kyoto / Osakaabout 3 h

CarNot needed

JR PassCovers the train

1. Train to Himi Station (JR)
2. Local bus, about 30 min

Fly into Kansai (KIX) or Itami. Times are rough estimates worked out from station locations, not a timetable — check the exact route on Google Maps.

The water here

Chloride spring 塩化物泉

Salty water. The salt leaves a thin film on the skin, so you stay warm well after leaving the bath.

Iron spring 含鉄泉

Turns reddish brown as the iron meets air. The water is clear at the source.

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.

More on tattoos and onsen

Where to stay

Opens Rakuten Travel, which lists inns in English. Onsen Guide earns a commission if you book through these links, at no extra cost to you.

Hot spring towns nearby

Similar water elsewhere

Towns further away with the same kind of water — useful if this one is hard to reach or fully booked.

The numbers

Water temperature

46°C

pH

7.23 (close to neutral)

Discharge

32 litres a minute

Address in Japanese

富山県氷見市神代

Figures from the town's Japanese Wikipedia article.

Where it is

36.7952, 136.9661 — open the map

Read more

Japanese Wikipedia