Atsugi Onsen Kanagawa
- Location
- Atsugi, Kanagawa, Japan
- Water type
- bicarbonate, sodium chloride
- Temperature
- 41 °C
- pH
- 8
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Atsugi Onsen is a diverse hot spring hub in Atsugi city, the largest inland city of Kanagawa Prefecture, situated in the Sagami River valley at the eastern foot of the Tanzawa Mountains, serving as the de facto capital of the Kanagawa highlands. The bicarbonate and chloride-enriched mineral waters combine skin-softening alkaline properties with the warming, mineralizing benefits of salt waters, creating a comprehensive therapeutic profile valued for musculoskeletal comfort and general wellbeing. Atsugi is known for its production of textiles and for the silk industry that flourished here in the Meiji era, and the city's blend of modern commerce and mountain proximity makes it a practical and comfortable thermal destination in the Kanagawa interior.