Kajika no Yu

河鹿の湯かじかのゆ

Other
Chubu·Shizuoka

Day Use

Yes

Bathing & Water

OnsenYes

Uses natural hot spring water

西平泉 湧ヶ島29号

Nishihiraizumi Yugashima No. 29

Operated by · 伊豆市湯ヶ島財産区

Sampled at wellhead
Sulfate
Classification

Calcium-Sodium Sulfate spring

A calcium-sodium sulfate spring, settled and mineral-rich, emerging hot at 45.4 °C — among the warmer natural sources. Weakly alkaline and soft on the skin, it sits at the edge of Japan's beauty-water family. At the source the water carries a faint yellow tint, and it is otherwise tasteless and odorless.

pH
8.00
Weakly alkaline
Source temperature
45.4°C
Hot
Tonicity
1.09g/kg
Hypotonic
Flow rate
791L/min
High
Free CO₂
4.40mg/kg
Low
Color
faintly yellow and clear
Taste
tasteless
Odor
odorless
Highlights
  • Top-decile hot

Analyzed Jan 22, 2020·株式会社サイエンス·Cert no. 第温200102号

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SM
Sergey M
1 year ago

513. Kajika no Yu, Izu An old-man onsen for 350 with no staff — buy a ticket from the machine, then drop it in a box. Located in the building next to Yumotokan. Operating hours are listed as 13:00 to 22:00. Bath photo is from the internet, roughly matches — I visited in the evening. Clear water, temperature around 43-44. A bit stuffy inside. 09.05.2025