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Photo: Soren Bradley · CC BY 4.0 · Wikimedia Commons

Numajiri Onsen

Fukushima · 沼尻温泉

Numajiri Onsen is a hot spring town in Fukushima, Japan. The water leaves the ground at 71.8°C, hot. It measures pH 1.9 — strongly acidic, the kind that stings on a cut. Officially the water is classed as sulfur spring. Its sources put out around 10,000 litres a minute. 2 inns take visitors here.

Getting there

From Tokyoabout 3 h
CarTaxi from the station
JR PassCovers the train
  1. Train to Inawashiro Station (JR)
  2. By car or taxi, about 30 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

Nihonmatsu CastleCastle · 17.8 km
Mount AzumaMountain · 15.4 km
Adatara ResortSki area · 8.3 km
Chōshi FallsWaterfall · 5.5 km
Oguni-numa PondLake · 19.8 km
Tenjin BeachBeach · 15 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 — FukushimaInns with a private bath — Fukushima

More on tattoos and onsen

Where to stay

Onsen inns — Inawashiro Town

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

Nakanosawa OnsenFukushima · 中ノ沢温泉1.5 km west
Chloride spring+2
Yokomuki OnsenFukushima · 横向温泉4.9 km northeast
Simple spring+2
Kurogane OnsenFukushima · くろがね温泉6 km east
Acidic spring
Washikura OnsenFukushima · 鷲倉温泉6.3 km northeast
Sulfate spring+3
Noji OnsenFukushima · 野地温泉6.7 km northeast
Sulfur spring
Shin-Noji onsenFukushima · 新野地温泉6.7 km northeast
Sulfur spring

Similar water elsewhere

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

Doroyu OnsenAkita · 泥湯温泉Also sulfur, similar pH
Sulfur spring
Onneyu OnsenHokkaido · 温根湯温泉Also sulfur
Sulfur spring
Kurokawa OnsenKumamoto · 黒川温泉Also sulfur
Sulfur spring
Nozawa OnsenNagano · 野沢温泉Also sulfur
Sulfur spring
Nakabusa OnsenNagano · 中房温泉Also sulfur
Sulfur spring
Harazuru OnsenFukuoka · 原鶴温泉Also sulfur
Sulfur spring

The numbers

Water temperature
71.8°C
pH
1.9 (strongly acidic)
Discharge
10,000 litres a minute
Inns
2
Address in Japanese
福島県耶麻郡猪苗代町蚕養

Figures from the town's Japanese Wikipedia article.

Where it is

37.6184, 140.2276 — 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.