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Bansei Onsen

Hokkaido · 晩成温泉

Bansei Onsen is a hot spring town in Hokkaido, Japan. The water leaves the ground at 18°C, cool enough that the baths here are usually reheated. It measures pH 7.8 — mildly alkaline, the slippery kind. Officially the water is classed as chloride spring and iodine spring. Its sources put out around 310 litres a minute.

Chloride springIodine 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.

Iodine spring 含よう素泉

Contains iodine and often turns yellowish over time. Uncommon.

More photographs

From Wikimedia Commons. Tap a photo for the photographer and licence.

Things to see nearby

Yūdō-numaLake · 9.1 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 — HokkaidoInns with a private bath — Hokkaido

More on tattoos and onsen

Where to stay

Onsen inns — Taiki 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

Nauman OnsenHokkaido · ナウマン温泉14.9 km west
Simple spring

Similar water elsewhere

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

Yasashigaura OnsenChiba · 矢指ヶ浦温泉Also iodine and chloride, similar pH
Chloride springIodine spring
Hakkannon OnsenSaitama · 百観音温泉Also iodine and chloride, similar pH
Chloride springIodine spring
Kameyama OnsenChiba · 亀山温泉Also iodine and chloride, similar pH
Chloride spring+2
Shirako OnsenChiba · 白子温泉Also iodine and chloride
Chloride springIodine spring
Takaya OnsenMiyazaki · 高屋温泉Also iodine and chloride
Chloride springIodine spring
Sekisui-ji OnsenYamanashi · 積翠寺温泉Also chloride, similar pH
Chloride spring

The numbers

Water temperature
18°C
pH
7.8 (mildly alkaline)
Discharge
310 litres a minute
Address in Japanese
北海道広尾郡大樹町晩成

Figures from the town's Japanese Wikipedia article.

Where it is

42.5324, 143.4831 — 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.