Shizuoka Aoi Onsen
- Location
- Shizuoka (Aoi Ward), Shizuoka Prefecture, Japan, Japan
- Water type
- bicarbonate
- Temperature
- 40 °C
- pH
- 8
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Shizuoka Aoi Onsen serves the administrative heart of Shizuoka City, Aoi Ward, where Sunpu Castle Park preserves the site of the magnificent final residence of Tokugawa Ieyasu, the shogun who unified Japan and chose to spend his retirement years in the city he loved rather than the capital he had established at Edo. The Shizuoka Sengen Shrine complex nearby shelters ancient cedar trees and lacquered shrine halls that served as the spiritual home of the ruling Imagawa clan before Tokugawa's era, layering the ward with centuries of political and religious history. The onsen's mineral waters provide a grounding soak at the cultural core of a city whose identity is inseparable from the legacy of the man who shaped modern Japan.