Yumoto Kumegawa Onsen

Yumoto Kumegawa Onsen is a property in Iida whose clearest draw is its hot spring. The water is described as having a pH above 10, a notably alkaline profile for guests who choose a stay primarily around bathing.

Communal and open-air baths give the water two settings, from an indoor soak to time outside. The property also makes a practical base for visitors heading toward the Achimura night-sky area by car.

Kumegawa is best considered an onsen stop with a defined water characteristic rather than a highly detailed dining or design destination. It is a useful choice for a restorative stop after time outdoors in the Iida area.