雙津峽溫泉, Radioactive hot spring in Iwakuni, Japan.
Shojinkyo Onsen is a radioactive hot spring in Iwakuni where naturally occurring radium and minerals are present in the thermal waters. The spring features separate bathing pools and flows through the local rock formations.
The spring developed as a local health resort during a period when radium-based treatments became recognized in Japanese medicine. It grew from a local thermal source into a destination for wellness.
The separate bathing areas for men and women reflect how Japanese bathing customs shape the daily experience of visitors using the thermal pools.
Remove your shoes at the entrance and bring your own towels, as these are not provided at the facility. Plan your visit within the operating hours to enjoy the thermal pools without feeling rushed.
The waters release radon gas into the air, creating a natural therapeutic quality that sets this spring apart from other Japanese hot springs. This gaseous element is what gives the experience its distinctive character.
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