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Kashima Onsen Saga

Kashima, Saga Prefecture, Kyushu, Japan
Kashima Onsen Saga
Location
Kashima, Saga Prefecture, Kyushu, Japan
Water type
sodium chloride
Temperature
40 °C
pH
7.3

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
Effortless float
LowHigh

Dense, salty water — you float without effort.

SodiumChloruresBrome

Kashima Onsen Saga is a thermal bathing facility in Kashima City on the shores of the Ariake Sea in Saga Prefecture, a coastal city distinguished by its extraordinary tidal flat environment on Japan's largest and most productive intertidal ecosystem, where the Ariake Sea's massive 6-meter tidal range creates the most extensive mudflat habitat in the Japanese archipelago, supporting an extraordinary abundance of specialized marine life including the beloved mudskipper (mutsu-gorō) fish that are celebrated in Kashima's distinctive ecological culture and featured in local cuisine and the unusual mudskipper fishing tradition unique to the Ariake coast. The Yutoku Inari Shrine, a 17th-century vermilion-lacquered shrine complex built on a hillside above Kashima and ranked among Japan's three great Inari (fox deity) shrines alongside Fushimi Inari in Kyoto and Toyokawa Inari in Aichi, draws hundreds of thousands of pilgrims annually to its cascading vermilion torii gates and incense-scented cedar forest in one of Kyushu's most important Shinto pilgrimage destinations. The chloride thermal spring waters here offer bathing in a coastal city where the extraordinary tidal flat ecosystem and the magnificence of one of Japan's greatest Inari shrines create an unusually rich and distinctive spa town identity on the Ariake coast.

Insider tip — Kashima Onsen draws chloride-rich waters in the flat coastal lowlands of Saga Prefecture facing Ariake Sea, one of Japan's most productive tidal mudflat ecosystems. The area is famed for its shiromi fish and ko-deba clams harvested at extreme low tides, and a post-seafood-dinner soak in the chloride waters is a beloved local ritual. The contrast of the vast tidal expanse and the intimate bathhouse culture gives Kashima an understated regional character.
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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 sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).