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Grand Mercure Yatsugatake Resort & Spa

Grand Mercure Yatsugatake Resort & SpaGrand Mercure Yatsugatake Resort & Spa

Lodging
Chubu·Yamanashi
03-6830-3918all.accor.com

Day Use

Yes

Bathing & Water

OnsenYes

Uses natural hot spring water

甲斐大泉温泉 パノラマの湯

Kai-Oizumi Onsen Panorama-no-Yu
曹
Bicarbonate
Classification

Sodium Bicarbonate spring

A sodium-led bicarbonate spring — the classic 'jūsō-sen' style, soft on the skin in the Japanese 'beauty-water' family. Weakly alkaline, moderately mineralized at 2,400 mg/kg dissolved solids, and emerging hot at 53 °C from the source. A generous 85 mg/kg of metasilicic acid adds the silica-film feel that leaves skin noticeably smoother afterwards.

Source temperature
53.0°C
Hot
Tonicity
2.41g/kg
Hypotonic
Free CO₂
199mg/kg
Low
Highlights
  • High silica

Analyzed Dec 27, 2021·株式会社 山梨県環境科学検査センター

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SM
Sergey M
1 year ago

588. Grand Mercure Yatsugatake Resort & Spa, Hokuto, Yamanashi Modern hotel. Visited for higaeri at 2000 yen. Higaeri hours from 15:00 to 21:00. In the Yamanashi 100 Onsen stamp book, this place is listed under a different name — staff ran around (literally) with my stamp book between offices, and eventually stamped a different stamp that fit the space. Before the bath area there's a very nice lounge. Bath photos from the internet match reality. 1. Indoor area. Breathing inside is comfortable. 1.1. Bath with clear water, temperature around 41-42°C. 1.2. Sauna. 1.3. Cold bath. 2. Outdoor bath in stone, no view behind a fence. Clear water, temperature around 40°C. The place looks quite nice, but it's overpriced — more interesting rotenburo can be found at other higaeri onsens in this area. 15.05.2025