Namekawa Onsen
- Location
- Inawashiro, Fukushima, Japan
- Water type
- calcium-rich
- Temperature
- 44 °C
- pH
- 6.5
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Namekawa Onsen is one of the Yonezawa Hachiyu—the Eight Hot Springs of Yonezawa—a historic grouping of thermal springs in Yamagata Prefecture recognized for their collective therapeutic value and their role in defining the mountain hot spring culture of the Yonezawa basin. A single-inn destination anchored by the Fukushimaya Ryokan, a member of the Onsen Yonezawa Hachiyu-kai association, Namekawa is one of Japan's quintessential ipponshibori (single-spring-inn) experiences where guests receive the undivided attention and traditional hospitality of one ryokan. The spring closes each winter from early November through late April under Yonezawa's famous heavy snowfall, making seasonal timing essential for the visitor seeking this quiet sulfated retreat.