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Omuta Tennen Onsen; Saiko no Yu

Ōmuta, Fukuoka, Japan
Omuta Tennen Onsen; Saiko no Yu

Illustration photo — not a verified picture of this exact spot.

Location
Ōmuta, Fukuoka, Japan
Water type
sodium chloride
Temperature
41 °C
pH
7.3

Water profile

Thermicity
Sedative
41 °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

In Japan, a traditional bathing ritual revolves around communal hot spring baths, known as onsen. This cherished custom emphasizes relaxation, purification, and social bonding. Visitors typically disrobe and shower before entering the baths, often separated by gender. Respect for others and adherence to specific etiquette rules are essential, fostering a serene and tranquil atmosphere. The onsen experience is a deeply ingrained cultural practice, promoting a sense of community and well-being.

Insider tip — Saiko no Yu, the ultimate happiness spring, serves Omuta City whose Miike Coal Mine and Miike Port together form a UNESCO World Heritage Site of Japan Meiji Industrial Revolution. The Miike Mine powered Japan from 1873 to 1997 as the nation's largest coal producer, and the underground galleries that once drove steel mills and naval shipyards now draw industrial heritage visitors to one of Kyushu most historically layered post-industrial cities.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 41 °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.