Hitachi Onsen
- Location
- Hitachi, Ibaraki, 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.
Hitachi Onsen is located in Hitachi City, Ibaraki Prefecture, a coastal city on the Pacific Ocean that gives its name — Hitachi, meaning "rising sun" — to one of Japan's most iconic technology corporations (Hitachi Ltd., founded here in 1910), making this Ibaraki coastal city a birthplace of Japanese industrial modernity that continues to define the city's identity alongside its remarkable Hitachi Seaside Park. The siliceous thermal waters here complement a city whose extraordinary Hitachi Seaside Park — famous for its spring nemophila (baby blue eyes) flower season, when millions of pale blue flowers blanket the hillsides — has become one of Japan's most visually spectacular seasonal tourism destinations. Bathing at Hitachi Onsen after experiencing the extraordinary blue flower panoramas of Hitachi Seaside Park provides a complete sensory immersion in a city where industrial heritage, natural beauty, and therapeutic mineral spring bathing combine in one of Ibaraki's most multifaceted Pacific coast destinations.