Higashimatsuyama Onsen
- Location
- Higashimatsuyama, Saitama Prefecture, 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.
Higashimatsuyama Onsen is located in Higashimatsuyama City, Saitama Prefecture, a city in the Musashino upland region of western Saitama near the Yoshimi Hyakuana — a remarkable complex of over two hundred rock-cut burial chambers from Japan's ancient Kofun period, a nationally designated historic site that preserves one of the Kanto region's most extraordinary early medieval burial landscapes. The siliceous thermal waters here serve a city whose archaeological richness extends from Kofun-era burial culture through medieval castle history — the Matsuyama Castle site overlooking the city — to the modern residential and commercial development that defines contemporary Saitama. Bathing at Higashimatsuyama Onsen after exploring the remarkable ancient cave burial chambers of Yoshimi Hyakuana provides a complete Saitama historical experience, combining mineral spring relaxation with immersion in the extraordinary ancient burial culture that shaped the early Japanese Kanto civilization.