Goshiki Onsen (Nagano)

Shinano, Nagano, Japan

Location: Shinano, Nagano, Japan
Water type: sulfurous
Temperature: 44 °C
pH: 6.5

Water profile

Thermicity

Sedative

44 °C

LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation

Bio-active

LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy

Standard buoyancy

LowHigh

Soft water — natural, classic buoyancy.

SoufreSulfuresSulfates

Goshiki Onsen in Nagano Prefecture is a hot spring resort whose name meaning Five Colors evokes the remarkable visual variety of its mineral waters, which shift in hue depending on the chemical composition and temperature of the spring flow, producing the distinctive multicolored pools that give this onsen its poetic name. Nagano Prefecture, situated in the heart of the Japanese Alps, is renowned for its exceptional concentration of hot spring resorts alongside world-class skiing and mountain scenery, and Goshiki Onsen contributes to this rich thermal bathing heritage with its sulfated and sulfurous waters appreciated within a long onsen tradition. The waters and the surrounding Alpine setting draw visitors seeking the restful pleasures of mountain mineral bathing amid the scenic beauty of the landscape.

Insider tip — Goshiki Onsen in northern Nagano sits in the volcanic highlands of the Shin-etsu region near Mount Myoko, where sulfurous springs emerge amid forests, ski slopes, and mountain wilderness. The name Goshiki ('five colours') reflects the way the mineral-rich water changes hue with the light and weather — a remote volcanic onsen in the Japan Alps where deep snow, hot sulfurous water, and dramatic mountain scenery combine in one of central Honshu's most pristine alpine landscapes.

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