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Monno No Yu

門野の湯もんののゆ

Public Bathhouse
Chubu·Yamanashi

Day Use

Yes
MonClosed
Tue10:00–18:00
Wed10:00–18:00
Thu10:00–18:00
Fri10:00–18:00
Sat10:00–18:00
Sun10:00–18:00

except Monday

Bathing & Water

Natural onsen water

Uses natural hot spring water

Indoor BathYes

Enclosed indoor bathing area

Policies & Services

WashingYes

Shower, wash stations, soap and shampoo provided

Water treatment

Treated and recirculated(partial disclosure)
from Article 18 disclosure
  • Added water
    Yes
  • Reheated
    Yes
  • Recirculated
    Yes
  • Disinfected
    Yes
  • Bath additives
    Not disclosed

湯口温泉

Yuguchi Onsen

Operated by · 身延町高齢者保養施設 門野の湯

Sulfur
Color
colorless and clear
Taste
hydrogen sulfide taste
Odor
hydrogen sulfide odor

Sodium-Calcium Chloride-Sulfate spring

pH 9.3AlkalineCold mineral source · 21°CSulfur-richTop-decile alkalineCold mineral
Composition fingerprint0.7 g/kg dissolved · Hypotonic
Na⁺54
Ca²⁺46
Cl⁻49
SO₄²⁻35
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻
table-salt anion — coats the skin and holds heat in.
Known good for
  • Skin conditionsatopic skin, eczema
  • Circulationtired legs
  • Smooth skindry, rough skin
  • Sensitive-skin cautionbroken or dry skin

An alkaline simple-sulfur cold-mineral spring. The source emerges at just 21 °C, so it is reheated for bathing. It carries hydrogen sulfide with the characteristic rotten-egg note and taste, and at pH 9.3 it is strongly alkaline with a slippery, soft feel on the skin. Lightly mineralized overall, it is gentle on the body. The bath is reheated, diluted, recirculated and disinfected, and the source is flagged as bathing only — not suitable for drinking.

Sampled at wellhead·Analyzed Dec 12, 2017·一般社団法人 山梨県食品衛生協会·Cert no. 梨食第29-6号

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Highlights

Jet Bath

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1 review

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Sergey M
1 year ago

514. 門野の湯, Minobu, Yamanashi Onsen for 500. Staff are sweet old ladies. Operating hours are listed as 10:00 to 18:00 (closed Mon). They stamp the Yamanashi 100 Onsen book. Two indoor baths. Breathing inside is fine. 1. Main bath with clear water, temperature around 40. 2. Bubble bath. Clear water, temperature around 42. 10.05.2025

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Last updated July 3, 2026