Niihama Onsen; Panas
Niihama, Ehime, Japan
- Location
- Niihama, Ehime, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Niihama Onsen (Panas), in Niihama, Ehime Prefecture, draws sodium-chloride water at 41°C. The bathhouse includes an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — Panas Onsen serves Niihama City, the birthplace of the Sumitomo industrial conglomerate whose copper smelting operations at the nearby Besshi Copper Mine opened in 1691 and transformed this coastal Ehime city into one of Meiji Japan most important industrial centers. The Besshi Mining Museum preserves the extraordinary story of 350 years of copper extraction from the mountains above Niihama, and the mine railway tunnels carved through granite at altitudes exceeding 1,000 metres remain among Japan most dramatic industrial heritage corridors.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.