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Onioshi Onsen

Gunma · 鬼押温泉

Onioshi Onsen is a hot spring town in Gunma, Japan. The water leaves the ground at 45°C, hot. It measures pH 7.3 — close to neutral. Officially the water is classed as bicarbonate spring and sulfate spring. Its sources put out around 60 litres a minute. 1 inns take visitors here.

Getting there

From Tokyoabout 2 h

CarNot needed

JR PassCovers the train

1. Train to Karuizawa Station (Shinkansen)
2. Local bus, about 50 min

Fly into Haneda or Narita. Times are rough estimates worked out from station locations, not a timetable — check the exact route on Google Maps.

The water here

Bicarbonate spring 炭酸水素塩泉

Smooth, slightly slippery water. Often nicknamed bihada-no-yu, the water for beautiful skin.

Sulfate spring 硫酸塩泉

Clear water with a faintly bitter taste. Known for holding heat.

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

45°C

pH

7.3 (close to neutral)

Discharge

60 litres a minute

Inns

1

Address in Japanese

群馬県吾妻郡嬬恋村

Figures from the town's Japanese Wikipedia article.

Read more

Japanese Wikipedia