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Izumi Onsen Kenkō Sentā

泉温泉健康センターいずみおんせんけんこうセンター

Public Bathhouse
Chubu·Yamanashi

Day Use

Yes
Mon11:00–21:00
Tue11:00–21:00
WedClosed
Thu11:00–21:00
Fri11:00–21:00
Sat11:00–21:00
Sun11:00–21:00

except Wednesdays

¥830

Bathing & Water

Natural onsen water

Uses natural hot spring water

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

Cold BathYes

Cold water plunge bath, typically used after sauna

Policies & Services

TattooNo

Allows entry with visible tattoos

WashingYes

Shower, wash stations, soap and shampoo provided

泉温泉健康センター

Izumi Onsen Kenko Center
Bicarbonate
+ Chloride
Color
colorless and transparent
Taste
faintly metallic and salty
Odor
a faint metallic note

Sodium Bicarbonate-Chloride spring

pH 7.5Weakly alkalineHot source · 51°C
Composition fingerprint1.9 g/kg dissolved · Hypotonic
Na⁺93
HCO₃⁻67
Cl⁻33
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Bicarbonate HCO₃⁻
"soda" — softens skin, leaves it smooth.
Known good for
  • Smooth skindry, rough skin
  • Aches & jointsstiff shoulders
  • Warmingcold sensitivity

A sodium-led bicarbonate spring of the classic jūsō-sen style, with a chloride sub-type adding a salty edge. Weakly alkaline at pH 7.5 at the wellhead, it sits in Japan's beauty-water family, soft on the skin. The water emerges hot at 51.2 °C and carries 1,897 mg/kg of dissolved solids — moderately mineralised with the faint metallic-iron note and salty tang the certificate records at the source.

Sampled at wellhead·Analyzed Feb 22, 2023·株式会社 山梨県環境科学検査センター·Cert no. 山環温第2022-9号

Explore the water

Highlights

Jet Bath

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3.0

1 review

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Sergey M
1 year ago

582. 泉温泉健康センター, Hokuto, Yamanashi ★ Onsen for 830 yen (410 for locals). Operating hours from 11:00 to 21:00 (closed Wed). They stamp the Yamanashi 100 Onsen book. Bath photos from the internet partially match — in person the mineral deposits on the baths are more noticeable. Indoor area. Breathing inside is fine. 1. Main bath with three jets. Visible mineral deposits on the bath. Clear water, temperature around 42°C. 2. Round bath with bubbles. Visible mineral deposits on the bath. Clear water, temperature around 42°C. 3. Sauna. 4. Cold bath. Nice inside — the mineral deposits on the baths are interesting. 15.05.2025

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Last updated July 3, 2026