Photo: Thirteen-fri · CC BY-SA 4.0 · Wikimedia Commons
Keio Takaosan Onsen
Keio Takaosan Onsen is a hot spring town in Tokyo, Japan. The water leaves the ground at 26.2°C, cool enough that the baths here are usually reheated. It measures pH 9.9 — strongly alkaline. Officially the water is classed as simple spring and sulfur spring. Its sources put out around 300 litres a minute.
Getting there
- Train to Takaosanguchi Station
- A short walk
The water here
Simple spring
Mild and low in dissolved minerals. Usually clear and gentle on the skin, which is why these baths are often recommended for first-timers.
Sulfur spring
The classic rotten-egg smell and milky white water. It can tarnish silver jewellery, so take it off.
More photographs
From Wikimedia Commons. Tap a photo for the photographer and licence.
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.
Where to stay
Hot spring towns nearby
Similar water elsewhere
The numbers
- Water temperature
- 26.2°C
- pH
- 9.9 (strongly alkaline)
- Discharge
- 300 litres a minute
- Address in Japanese
- 東京都八王子市高尾町2229番7
Figures from the town's Japanese Wikipedia article.
Where it is
35.6321, 139.2692 — open the map
Read more
Planning a first soak? Read how an onsen stay works, and what to do if you have tattoos.