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Iwaido Onsen

Toyama · 岩井戸温泉

Iwaido Onsen is a hot spring town in Toyama, Japan. The water leaves the ground at 49.9–54.2°C, hot. It measures pH 1–8.08 — strongly acidic, the kind that stings on a cut. Officially the water is classed as chloride spring. Its sources put out around 62 litres a minute. 4 inns take visitors here.

Getting there

From Kyoto / Osakaabout 3 h
CarNot needed
JR PassCovers the train
  1. Train to Himi Station (JR)
  2. Local bus, about 15 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.

Chloride spring

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

Nanao CastleCastle · 11.7 km
Kokutai-ji TempleTemple · 10.6 km
Himi Aiyama GardenGarden · 4.7 km
Kōzen-ji TempleTemple · 5.9 km
Isurugihiko ShrineShrine · 7.3 km
Mount SekidōMountain · 7.7 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 — Toyama

More on tattoos and onsen

Where to stay

Onsen inns — Himi 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

Kōjiro OnsenToyama · 神代温泉13 km south
Chloride springIron spring
Yugawa OnsenIshikawa · 湯川温泉19.7 km north
Chloride spring
Wakura OnsenIshikawa · 和倉温泉21.8 km northwest
Chloride spring
Namazu OnsenToyama · 鯰温泉23.6 km southeast
Chloride springIron spring
Miyajima OnsenToyama · 宮島温泉25.8 km southwest
Chloride springSulfate spring
Kurehayama OnsenToyama · 呉羽山温泉26.7 km southeast
Bicarbonate spring

Similar water elsewhere

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

Yunokuchi OnsenMie · 湯ノ口温泉Also chloride
Chloride spring
Furusato OnsenKagoshima · 古里温泉Also chloride
Chloride spring
Makubetsu OnsenHokkaido · 幕別温泉Also chloride
Chloride spring
Ōshiōrabandai OnsenFukushima · 大塩裏磐梯温泉Also chloride
Chloride spring
Yaizu OnsenShizuoka · 焼津温泉Also chloride
Chloride spring
Odaitō OnsenHokkaido · 尾岱沼温泉Also chloride
Chloride spring

The numbers

Water temperature
49.9–54.2°C
pH
1–8.08 (strongly acidic)
Discharge
62 litres a minute
Inns
4
Address in Japanese
富山県氷見市

Figures from the town's Japanese Wikipedia article.

Where it is

36.9060, 137.0140 — 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.