Marukoma Hot Spring Hotel

湖畔の宿支笏湖 丸駒温泉旅館こはんのやどしこつこ まるこまおんせんりょかん

Lodging
Hokkaido·Hokkaido

Day Use

Yes

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Dry heat sauna room

OnsenYes

Uses natural hot spring water

Capabilities

Private BathYes

Private bath available for day-use visitors or hotel guests to reserve

Policies & Services

TattooYes

Allows entry with visible tattoos

Unverified

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

丸駒温泉 2号井

Marukoma Onsen Well No. 2

Operated by · 丸駒温泉株式会社

Sampled at wellhead
Chloride
+ Bicarbonate · Sulfate
Classification

Sodium-Calcium Chloride-Bicarbonate-Sulfate spring

A sodium- and calcium-led chloride spring with bicarbonate softness and a quiet sulfate body layered in — a true compound water rather than a single-axis source. Neutral pH keeps the touch gentle, while 1,728 mg/kg of dissolved solids gives enough mineral body to be noticeable on the skin. A generous 241 mg/kg of metasilicic acid puts it squarely in the Japanese 'beauty-water' family — the silica leaves a thin film that makes skin feel noticeably smoother afterwards. The water carries a faint yellow tint with slight turbidity at the source, with no perceptible taste or smell.

pH
6.86
Neutral
Source temperature
51.3°C
Hot
Tonicity
1.73g/kg
Hypotonic
Flow rate
120L/min
Typical
Free CO₂
104mg/kg
Low
Color
pale yellow, slightly turbid
Taste
tasteless
Odor
odorless
Highlights
  • High silica

Analyzed Oct 2, 2019·日本衛生株式会社·Cert no. 北海道生衛第0169号

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