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Awashima Hotel

淡島ホテルあわしまホテル

Other
Chubu·Shizuoka

Bathing & Water

Outdoor BathYes

Open-air outdoor bath

淡島温泉 内浦1号

Awashima Onsen Uchiura No. 1

Operated by · 株式会社フェニックス

塩
Chloride
Color
faintly pale and turbid
Taste
weakly salty, slightly bitter
Odor
faint hydrogen sulfide

Sodium-Calcium Chloride spring

pH 7.2Neutral
Composition fingerprint7.3 g/kg dissolved · Hypotonic
Na⁺55
Ca²⁺44
Cl⁻91
◀ CationsAnions ▶
Sodium Na⁺
salt's cation — pairs with chloride to make the water salty.
Chloride Cl⁻
table-salt anion — coats the skin and holds heat in.
Known good for
  • Warmingcold sensitivity
  • Cutsminor wounds
  • Recoveryfatigue, stress

A sodium-calcium chloride spring, neutral in pH and softly mineralized at 7,349 mg/kg of total dissolved solids. The water carries the heat-retaining body characteristic of chloride springs, with a faintly cloudy pale tint at the source and a mild salty-bitter tang paired with a whisper of hydrogen sulfide.

Sampled at wellhead·Analyzed Mar 21, 2024·芝浦セムテック株式会社·Cert no. 第22315004号

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Onsen Oni

Last updated October 7, 2026