Onsen OniOnsen Oni

Search Onsen Oni

Search onsen, areas, prefectures and pages.

Nishiyama Onsen Yushima no Yu

西山温泉 湯島の湯にしやまおんせん ゆしまのゆ

Public Bathhouse
Chubu·Yamanashi

Day Use

Yes
12:00–18:00
¥700

Bathing & Water

Natural onsen water

Uses natural hot spring water

Outdoor BathYes

Open-air outdoor bath

西山温泉 湯島の湯

Nishiyama Onsen Yushima no Yu

Operated by · 早川町

Sulfate
+ Chloride
Color
colorless and transparent
Taste
not recorded
Odor
odorless

Sodium Sulfate-Chloride spring

pH 9.7AlkalineHot source · 42°CTop-decile alkaline
Composition fingerprint1.2 g/kg dissolved · Hypotonic
Na⁺83
Ca²⁺15
SO₄²⁻46
Cl⁻38
CationsAnions
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Sulfate SO₄²⁻
"gypsum / Glauber's salt" — vessels and wound healing.
Known good for
  • Aches & jointsstiff shoulders
  • Circulationtired legs
  • Warmingcold sensitivity

A sodium-led sulfate-chloride spring emerging hot at 42.3 °C. At pH 9.7 it is alkaline, giving the slippery, skin-smoothing feel of the Japanese beauty-water family, with sulfate adding quiet body and a salty chloride edge. Moderately mineralized, it bathes with noticeable substance on the skin.

Sampled at wellhead·Analyzed Feb 24, 2009·社団法人 山梨県食品衛生協会·Cert no. 検食第20-13号

Explore the water

Views

Forest

Loading map…

3.0

1 review

5
0
4
0
3
1
2
0
1
0
SM
Sergey M
1 year ago

517. Nishiyama Onsen Yushima no Yu, Hayakawa, Yamanashi ★ Onsen for 700. Operating hours are listed as 12:00 to 18:00. They stamp the Yamanashi 100 Onsen book. They stamp the Hayakawa towel. Bath photos are from the internet, match the real thing. Two baths in the outdoor area. View through bushes, but still pleasant. 1. Bath that looks like it's set in a small stone formation, clear water, temperature around 39. 2. Wooden bath. Clear water with occasional fine white mineral deposits. Temperature around 40. Pleasant place with outdoor baths, worth keeping in mind when visiting Hayakawa. 10.05.2025

1
2
3
4
5
6
7
8
9

Last updated July 3, 2026