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Owase Onsen

Owase, Mie (Kansai), Japan
Owase Onsen
Location
Owase, Mie (Kansai), Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Owase Onsen is a coastal thermal facility in Owase city on the Kumano Coast of Mie Prefecture, one of Japan's rainiest places due to its position at the base of the Kii Mountains where Pacific typhoons deposit extraordinary rainfall, creating lush subtropical forests, dramatic waterfalls, and siliceous geothermal springs emerging from the ancient crystalline basement of the Kii Peninsula. The Kumano Kodo Iseji pilgrimage route passes through Owase, connecting the great Ise Shrines to the sacred Kumano region along this dramatic Pacific coastline of rocky headlands, emerald coves, and ancient pilgrimage inns. The siliceous hot spring waters of Owase, enjoyed amid the sound of Pacific waves and the scent of subtropical forest, offer one of Japan's most dramatically coastal and spiritually charged onsen experiences.

Insider tip — Owase Onsen lies in Mie Prefecture's Kii Peninsula coast, one of Japan's rainiest regions where abundant precipitation feeds deep geothermal circulation. The bicarbonate waters emerge clear and slightly alkaline from sedimentary formations beneath the terraced fishing port. Ama divers from the nearby Owase coast historically used such springs to warm after cold Pacific dives.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).