Hotel Kasugai

ホテル春日居ホテルかすがい

Lodging
Chubu·Yamanashi

Day Use

Yes

Bathing & Water

OnsenYes

Uses natural hot spring water

市営春日居1号源泉

Municipal Kasugai Spring No. 1

Operated by · 笛吹市

Sampled at wellhead
Simple
Classification

Sodium Chloride-Sulfate-Carbonate spring

Municipal Kasugai Spring No. 1 is a gentle simple thermal spring, classified hypotonic and hot, whose wellhead pH of 9.7 marks it as strongly alkaline. The strong alkalinity gives a pronounced slippery feel on the skin, placing it squarely in Japan's beauty-water family. Sodium leads the modest mineralization alongside traces of chloride and sulfate; at the source the water carries a faint brownish-yellow tint and a metallic taste, emerging hot at 42.1 °C.

pH
9.70
Alkaline
Source temperature
42.1°C
Hot
Tonicity
0.25g/kg
Hypotonic
Flow rate
445.7L/min
Typical
Color
colorless and transparent, with a faint brownish-yellow tint
Taste
metallic
Highlights
  • Strongly alkaline

Analyzed Feb 2, 2023·一般社団法人 山梨県食品衛生協会·Cert no. 梨食第令4-7号

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SM
Sergey M
1 year ago

573. Hotel Kasugai, Fuefuki, Yamanashi ★ Visited for higaeri at 1650 yen (they give a small towel; large towels available in the changing room). Higaeri hours are from 12:00 to 18:00. They stamp the Yamanashi 100 Onsen book. They issue Toreco cards for the onsen. 1. Outdoor bath. Not much of a view — everything hidden behind tree foliage. Clear water, temperature around 41°C. 2. Indoor area. Breathing inside is fine. 2.1. Large bath with clear water, temperature around 41-42°C. 2.2. Sauna. 2.3. Cold bath. Decent place, pleasant for higaeri. 14.05.2025