Oigami Onsen
- Location
- Oigami, Gunma Prefecture, Japan
- Water type
- calcium-rich, thermal
- Temperature
- 42 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Oigami Onsen in Gunma Prefecture carries one of the most spiritually evocative names in Japan's onsen tradition—Pursuing the God or Chasing the Divine—suggesting a spring where the source waters emerge with such purity and energy that bathers feel themselves drawing close to a divine force as they follow the water to its volcanic origin in the earth beneath the Joshinetsu mountains. The sulfated and simple waters offer a mineral combination typical of Gunma's thermally active highlands, pairing the smooth character of sulfate-rich water with the gentle alkaline accessibility of simple spring waters in a classic mountain valley setting. This divinely named spring in Japan's most onsen-rich prefecture invites bathers to approach thermal immersion as a form of sacred pursuit toward the source of the spring.