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Shiono Onsen

Takamatsu, Kagawa, Japan
Shiono Onsen
Location
Takamatsu, Kagawa, Japan
Water type
thermal
Temperature
40 °C
pH
7.3

Water profile

Thermicity
Sedative
40 °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

Shiono Onsen is a hot spring in Japan offering thermal bathing in a natural spring setting that contributes to the country's extraordinary diversity of geothermal bathing resources distributed across the volcanic arc of the Japanese archipelago. Japan's volcanic geology produces thousands of distinct hot spring sources of varied mineral composition across every major island from Hokkaido to Kyushu and the island chains beyond, and each spring occupies a specific place within this vast thermal landscape as both a local community resource and a destination for visitors seeking the cultural and sensory pleasures of Japanese hot spring bathing. The onsen tradition of Japan, recognized globally as a defining element of Japanese culture and hospitality, encompasses springs from the grandest resort complexes to the most intimate neighborhood sentos, all sharing the fundamental quality of geothermally heated natural water whose warmth and mineral character provide the foundation for one of the world's most sophisticated bathing cultures.

Insider tip — Shionoe Onsen in the mountains south of Takamatsu is the rare hot spring of Kagawa — Japan's smallest prefecture, famous for Sanuki udon noodles and the Seto Inland Sea. Tucked in a forested valley of the Sanuki mountains, the onsen offers a mountain retreat in a region better known for its sun-baked plains and island-dotted sea, a green refuge in the hills of Shikoku within easy reach of the udon capital of Japan.
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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 thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.