Minatoyama Onsen
- Location
- Kobe, Hyogo, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
In Kobe's Hyogo ward, Minatoyama Onsen draws on a spring that has been flowing for more than 800 years. Local tradition holds that Taira no Kiyomori, a major 12th-century Japanese warlord, once bathed here. The bathhouse as it stands today was founded in 1889, during the Meiji era, making it one of the port city's historic public baths.
The water carries a faint tea-brown tint and dissolved carbon dioxide, giving it a distinctive texture on the skin. True to a traditional Japanese bathing ethos, the facility heats its source water over a wood fire and feeds it directly into the tubs at full strength, without recirculation or chemical treatment — an increasingly rare choice among modern urban onsen.