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Photo: ブルーノ・プラス · CC BY 4.0 · Wikimedia Commons

Kazuma Onsen

Tokyo · 数馬温泉

Kazuma Onsen is a hot spring town in Tokyo, Japan. It measures pH 9 — strongly alkaline. Officially the water is classed as simple spring. Its sources put out around 138 litres a minute.

Getting there

From Tokyoabout 2 h

CarNot needed

JR PassCovers the train

1. Train to Musashi-Itsukaichi Station (JR)
2. Local bus

Fly into Haneda or Narita. Times are rough estimates worked out from station locations, not a timetable — check the exact route on Google Maps.

The water here

Simple spring 単純温泉

Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.

Things to see nearby

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.

More on tattoos and onsen

Where to stay

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

Similar water elsewhere

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

The numbers

pH

9 (strongly alkaline)

Discharge

138 litres a minute

Address in Japanese

東京都西多摩郡檜原村数馬

Figures from the town's Japanese Wikipedia article.

Where it is

35.7279, 139.0443 — open the map

Read more

Japanese Wikipedia