Umenoya — Tsuyahada no Yu

Spring-source temperature

Not published; the hotel only explains that hot and cooler spring water are blended

Bathing temperature

Fixed bath temperature not published

Spring source

Umenoya's own spring blended with a hotter Yuda spring; the exact source names are not published

Spring classification

Mildly alkaline simple spring; the hotel's own spring is pH 8.03 and rich in sodium and bicarbonate ions

pH

8.03 (Umenoya's own spring)

Flow rate

104.5 L/min (own spring); the hotel also describes this as about 150 tonnes per day

Water handling

The hotel says it tempers hotter Yuda spring water with its cooler own spring, without adding water or heating, and serves 100% spring water as a flow-through bath.

Usual day-use rate: adults ¥900; children through elementary-school age half price. 10:00 a.m.–midnight, last reception 11:00 p.m. The Tsuyahada no Yu bath was closed for renovation September 7–18, 2026.

As of the source check on September 7, 2026, day use was on hold for renovation. Confirm the bath has reopened before visiting. A pump failure also temporarily interrupted service in July 2026.