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Lake Haruna Onsen

Gunma · 榛名湖温泉

Lake Haruna Onsen is a hot spring town in Gunma, Japan. Officially the water is classed as chloride spring and sulfate spring.

Getting there

From Tokyoabout 2½ h
CarNot needed
JR PassCovers the train
  1. Train to Takasaki Station (Shinkansen)
  2. Local bus, about 90 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 — GunmaInns with a private bath — Gunma

More on tattoos and onsen

Where to stay

Onsen inns — Gunma

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.

Similar water elsewhere

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

Shima OnsenGunma · 四万温泉Also sulfate and chloride
Chloride springSulfate spring
Tamatsukuri OnsenShimane · 玉造温泉Also sulfate and chloride
Chloride springSulfate spring
Atami OnsenShizuoka · 熱海温泉Also sulfate and chloride
Chloride springSulfate spring
Asamushi OnsenAomori · 浅虫温泉Also sulfate and chloride
Chloride springSulfate spring
Yamashiro OnsenIshikawa · 山代温泉Also sulfate and chloride
Chloride springSulfate spring
Sarugakyō OnsenGunma · 猿ヶ京温泉Also sulfate and chloride
Chloride springSulfate spring

Read more

Japanese Wikipedia

Other towns in Gunma

Kusatsu OnsenGunma · 草津温泉
Chloride spring+3
Ikaho OnsenGunma · 伊香保温泉
Sulfate spring
Shima OnsenGunma · 四万温泉
Chloride springSulfate spring
Manza OnsenGunma · 万座温泉
Acidic springSulfur spring
Oigami OnsenGunma · 老神温泉
Simple spring
Sarugakyō OnsenGunma · 猿ヶ京温泉
Chloride springSulfate spring
Minakami OnsenGunma · 水上温泉
Sulfate spring
Isobe OnsenGunma · 磯部温泉
Chloride spring+2

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