Jinzu Onsen

Kinokawa, Wakayama, Japan

Location: Kinokawa, Wakayama, Japan
Water type: sodium chloride
Temperature: 41 °C
pH: 7.3

Water profile

Thermicity

Sedative

41 °C

LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation

Restorative

LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy

Effortless float

LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

Jinzu Onsen, in Kinokawa, Wakayama Prefecture, draws sodium-chloride thermal water at 41°C, with an indoor bath, an outdoor bath (rotenburo) and a sauna on site.

Insider tip — Jinzu Onsen serves Kinokawa City along the Kinokawa River whose ancient timber-floating tradition carried Kii Peninsula cedar logs from the mountain forests to coastal ports for over a thousand years. The Kinokawa valley was the agricultural heartland of the Kishu Tokugawa domain — one of the three great branch houses of the Tokugawa shogunate — and the river corridor preserves stretches of the Koya-kaido pilgrimage highway whose stone-paved sections between persimmon orchards and tea fields still guide walkers toward Koyasan.

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