Otsuka Onsen Kanai Ryokan

A quiet hot spring inn in Gunma where the water, alkaline and source-fed, runs on the cool side, around 32-35°C outdoors and up to 40°C in the heated indoor bath. There are four different baths to move between, including an outdoor mixed bath and a large indoor mixed tub with water welling up from a rock pile. Slow soaks in lukewarm spring water are the main draw here.