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Andai Onsen

Nagano · 安代温泉

Andai Onsen is a hot spring town in Nagano, Japan. The water leaves the ground at 97°C, hot enough that it has to be cooled before anyone can get in. Officially the water is classed as chloride spring.

Getting there

From Tokyoabout 2½ h

CarNot needed

JR PassNot a JR line

1. Train to Yudanaka Station
2. Local bus, about 5 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

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.

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

97°C

Address in Japanese

長野県下高井郡山ノ内町大字平穏字安代

Figures from the town's Japanese Wikipedia article.

Where it is

36.7355, 138.4281 — open the map

Read more

Japanese Wikipedia