Soothing — neither hot nor cold, perfect balance.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Jinzukyo Onsen in the Niibara area of Toyama City, Toyama Prefecture was a sulfate-rich thermal spring associated with a former thermal resort that once offered mineral bathing in the dramatic gorge of the Jinzu River — one of Toyama Prefecture's most scenically imposing river canyons — before the facility ultimately ceased operations, leaving behind the memory of a hot spring that once combined thermal bathing with the extraordinary natural scenery of one of Japan's most impressive gorge landscapes. The sulfate mineral composition of this spring's water carried the distinctive character of volcanic sulfate chemistry, making it a notable destination where visitors came for extended immersion in the volcanic mineral water of the Jinzu gorge. Jinzukyo Onsen represents the historical category of Japanese toji facilities — long-stay thermal retreats — that once formed an essential part of the country's pre-modern culture, where naturally heated volcanic mineral water was central to a tradition of restorative stays embedded in community and seasonal life.