Ono Onsen; Kenko no Yu
Hirono, Iwate, Japan
- Location
- Hirono, Iwate, Japan
- Water type
- sodium chloride
- Temperature
- 42 °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
Ono Onsen Kenko no Yu, in Hirono, Iwate Prefecture, draws sodium-chloride water at 42°C. The facility has an indoor bath, an outdoor rotenburo pool and a sauna.
Insider tip — Kenko no Yu serves Hirono-cho on the northern Iwate Pacific coast near the Aomori border, where the Sanriku Rias coastline begins its long journey south through fjord-like inlets and forested headlands. The Hirono shore is part of the Sanriku Reconstruction National Park created after the 2011 Great East Japan Earthquake, and the community spring provides essential social continuity in a fishing town that rebuilt its squid and mackerel harvest operations from the ruins of the tsunami.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °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.