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Akanudani Onsen

Nagano · 赤怒谷温泉

Akanudani Onsen is a hot spring town in Nagano, Japan. Officially the water is classed as sulfur spring.

Getting there

From Tokyoabout 3½ h
CarNot needed
JR PassNot a JR line
  1. Train to Shin-Shimashima Station
  2. Local bus, about 45 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.

Sulfur spring

The water here

Sulfur spring 硫黄泉

The classic rotten-egg smell and milky white water. It can tarnish silver jewellery, so take it off.

Things to see nearby

Hotaka MountainsMountain · 10.3 km
Hirayu FallsWaterfall · 5.2 km
Hirayu ShrineShrine · 5 km
Bandokoro FallsWaterfall · 9.3 km
Igaya Ski ResortSki area · 9.7 km
Hida Hōnoki Daira Winter ResortSki area · 10.9 km

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.

Rooms with an open-air bath — NaganoInns with a private bath — Matsumoto City

More on tattoos and onsen

Where to stay

Onsen inns — Matsumoto City

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

Sakamaki OnsenNagano · 坂巻温泉0.7 km southeast
Chloride spring+2
Nakanoyu OnsenNagano · 中の湯温泉0.8 km northwest
Iron springSulfur spring
Kamikōchi OnsenNagano · 上高地温泉5.1 km north
Sulfur spring
Hirayu OnsenGifu · 平湯温泉5.2 km west
Chloride springBicarbonate spring
Shirahone OnsenNagano · 白骨温泉5.8 km south
Bicarbonate springSulfur spring
Sawando OnsenNagano · 沢渡温泉6.3 km southeast

Similar water elsewhere

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

Yūdoku OnsenHokkaido · 有毒温泉Also sulfur
Sulfur spring
Bessho OnsenNagano · 別所温泉Also sulfur
Sulfur spring
Hirugami OnsenNagano · 昼神温泉Also sulfur
Sulfur spring
Kurokawa OnsenKumamoto · 黒川温泉Also sulfur
Sulfur spring
Togura-Kamiyamada OnsenNagano · 戸倉上山田温泉Also sulfur
Sulfur spring
Takayu OnsenFukushima · 高湯温泉Also sulfur
Sulfur spring

The numbers

Address in Japanese
長野県松本市安曇

Figures from the town's Japanese Wikipedia article.

Where it is

36.2025, 137.6086 — open the map

Read more

Japanese Wikipedia

Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.