Ojiro No Yu

尾白の湯おじろのゆ

Other
Chubu·Yamanashi

Day Use

Yes

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

SaunaYes

Dry heat sauna room

OnsenYes

Uses natural hot spring water

Policies & Services

DiningYes

Restaurant or dining open to visitors (not just hotel meal plans)

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels available to rent or borrow

甲斐駒ヶ岳温泉 尾白の湯

Kaikomagatake Onsen Ojiro no Yu
Sampled at wellhead
Chloride
Classification

Sodium Chloride spring

A sodium chloride strong-salt spring with dissolved solids of 25.5 g/kg — richly mineralized water that leaves a noticeable salt film on the skin. Weakly alkaline and hypertonic, it runs colorless and clear at the source with a slightly salty, faintly metallic tang. The chloride character makes it strongly heat-retaining, so warmth lingers well after the bath.

pH
7.70
Weakly alkaline
Source temperature
35.1°C
Warm
Tonicity
25.53g/kg
Hypertonic
Flow rate
142L/min
Typical
Free CO₂
52mg/kg
Low
Color
colorless and clear
Taste
slightly salty with a metallic edge
Odor
a metallic iron note
Highlights
  • Strong salt

Analyzed Feb 21, 2022·株式会社 山梨県環境科学検査センター·Cert no. 山環衛第2021-9号

Views

Mountains
Forest

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SM
Sergey M
1 year ago

584. 尾白の湯, Hokuto, Yamanashi ★★ Onsen for 830 yen (410 for locals). Operating hours from 11:00 to 21:00 (closed Wed). They stamp a different stamp in the Yamanashi 100 Onsen book. Bath photos from the internet match reality. 1. Outdoor bath area. No view, but spacious and cozy. 1.1. Large stone bath, clear water, temperature around 40°C. 1.2. Small stone bath, murky brown water, temperature around 38°C. 2. Indoor area. Noticeable chlorine smell. Breathing inside is fine. 2.1. Large bath with a round bubble zone. Clear water, temperature around 41°C. 2.2. Reclining zone. 2.3. Bath with two jet sets and utaseyu. Clear water, temperature around 38°C. 2.4. Sauna. 2.5. Cold bath. The rotenburo area and the brown water — rare for Yamanashi — make this recommended for a visit. 15.05.2025