About UU ueda
"UU ueda" is a high-end day-use bathing facility in Ueda City, Nagano Prefecture. It features an automatic löyly sauna with different performances every 15 minutes, as well as a dimly lit authentic self-löyly sauna where you can pour aroma water onto the stones. There are two cold plunge baths: the ultra-cold "single" at around 9 degrees and a standard cold plunge bath at around 15 degrees, both luxuriously using crisp natural groundwater pumped up from the site. The baths are fed by the facility's own natural hot spring source. Guests can also enjoy a high-carbonated spring, a silk hydrogen bath, a restaurant featuring carefully selected local ingredients, and even a 3D map adventure, making it an exceptional space for sauna enthusiasts.