น้ำพุร้อนไหลจากแหล่งธรรมชาติ
Tsuruta no Yu
A strongly alkaline simple hot spring with a pH of 9.04, gushing up from underground. In the tsubo-buro in the outdoor area, the source water is used directly as a free-flowing spring, allowing you to feel the rich natural components of the hot spring on your skin. It is highly effective at removing old dead skin cells and smoothing the skin, leaving it moist and hydrated even after bathing. This is an exquisite bathhouse where you can indulge in a luxurious soak while gazing at the Utsunomiya sky.