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Inatori Onsen

Higashiizu, Shizuoka, Japan
Inatori Onsen
Location
Higashiizu, Shizuoka, Japan
Water type
thermal
Temperature
42 °C
pH
7.3

Water profile

Thermicity
Sedative
42 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Balancing
LowHigh

Rich in trace elements — gentle on the skin.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesCalcium

Inatori Onsen in Higashiizu Town, Shizuoka Prefecture on the eastern Izu Peninsula is celebrated throughout Japan for the Hinakazari festival held from January 20 through March 31, during which thousands of traditional hanging doll decorations — tsurushi-kazari — are displayed in the streets and inns of the onsen town, creating one of the country's most visually spectacular seasonal winter celebrations that draws visitors from across Japan to experience both the folk craft tradition and the thermal bathing of this Izu coastal community. The spring occupies a setting on the Pacific-facing coast of the Izu Peninsula where the geothermal energy of the peninsula's volcanic heritage produces naturally heated mineral waters near the fishing harbor, creating a distinctive coastal onsen atmosphere that combines the maritime traditions of the Izu fishing community with the inland pleasures of volcanic thermal bathing. Inatori Onsen's seasonal festival identity and its coastal thermal setting make it one of the Izu Peninsula's most atmospherically distinctive destinations, offering the pleasures of folk art, community celebration, Pacific Ocean coastal scenery, and volcanic spring bathing in a single winter-season destination of unusual cultural and natural richness.

Insider tip — Inatori Onsen occupies a sheltered bay on the east coast of the Izu Peninsula where clear thermal springs have been channeled into elegant seafront bathhouses since the Meiji era. The spring water is near-neutral and silky, ideal for sensitive skin, and the oceanfront rotenburo at dusk transforms into a front-row seat for Pacific sunsets. Local seafood, particularly the spiny lobster, pairs perfectly with a multi-course kaiseki dinner at the traditional ryokan lining the inlet. A short boat trip to Inatoriminato's fish market at dawn is a rewarding early-morning excursion.
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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 thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).