Itamuro Kenko no Yu Green Green
This day spa is located in Nasushiobara City. Its indoor baths leverage the vast amounts of hot spring water on hand while its open-air baths featuring transparent and colorless alkaline simple hot spring water are said to help with conditions such as nerve pain and muscle soreness. The Ami no Yu open-air baths, one of the spa's most notable features, allow bathers to soak in water deeper than their waists while holding on to ropes suspended from the rafters. The spa's different baths rotate between the two genders on a weekly basis."