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Ōsawa Onsen

Tochigi · 大沢温泉

Ōsawa Onsen is a hot spring town in Tochigi, Japan. The water leaves the ground at 48°C, hot. Officially the water is classed as chloride spring and sulfate spring.

Getting there

From Tokyoabout 2 h
CarTaxi from the station
JR PassCovers the train
  1. Train to Kuroiso Station (JR)
  2. Taxi, about 25 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.

Chloride springSulfate 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.

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.

Rooms with an open-air bath — Nasu TownInns with a private bath — Tochigi

More on tattoos and onsen

Where to stay

Onsen inns — Nasu 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

Nasu OnsenkyōTochigi · 那須温泉郷Same area
Simple spring+6
Ashino Hot spaTochigi · 芦野温泉Same area
Simple spring
Yanagisawa OnsenTochigi · 柳沢温泉Same area
Chloride springBicarbonate spring
NasuonsenkyōTochigi · 北温泉Same area
Simple spring+6
NasuonsenkyōTochigi · 大丸温泉Same area
Simple spring+6
NasuonsenkyōTochigi · 弁天温泉Same area
Simple spring+6

Similar water elsewhere

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

Tamatsukuri OnsenShimane · 玉造温泉Also sulfate and chloride
Chloride springSulfate spring
Sarugakyō OnsenGunma · 猿ヶ京温泉Also sulfate and chloride
Chloride springSulfate spring
Higashiyama OnsenFukushima · 東山温泉Also sulfate and chloride
Chloride springSulfate spring
Sakunami OnsenMiyagi · 作並温泉Also sulfate and chloride
Chloride springSulfate spring
Sawatari OnsenGunma · 沢渡温泉Also sulfate and chloride
Chloride springSulfate spring
Nishiyama OnsenYamanashi · 西山温泉Also sulfate and chloride
Chloride springSulfate spring

The numbers

Water temperature
48°C
Address in Japanese
栃木県那須郡那須町

Figures from the town's Japanese Wikipedia article.

Read more

Japanese Wikipedia

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