Hatchō-no-Yu
- Location
- Nikko, Tochigi, Japan
- Water type
- sulfurous
- Temperature
- 44 °C
- pH
- 6.5
Water profile
Relaxing — deep, immediate muscle release.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
Hatchō-no-Yu—Eight-Cho Waters—takes its name from the traditional Japanese distance measure of the cho (approximately 109 meters), with eight cho suggesting a spring reached after a journey of some 870 meters from the main road or settlement—a modest distance that marks the spring as just far enough from everyday life to feel like a genuine retreat while remaining accessible to those on foot. Located in the Shiobara Onsenkyo area of Tochigi Prefecture—one of the Kanto region's most celebrated and historically beloved hot spring clusters, where some thirty springs of varying mineral character line the Homoki River gorge—this sulfurous spring participates in a therapeutic landscape of extraordinary density and diversity. The eight-cho distance and sulfurous volcanic character place Hatchō-no-Yu within Shiobara's tradition of springs hidden just enough in the gorge landscape to reward the short journey with the volcanic intensity of a genuinely powerful mineral bath.