Manza Prince Hotel (Day-Use Onsen)

Spring-source temperature

Uba-yu: approximately 76–80°C at the source; not the bath temperature

Bathing temperature

Not published; do not infer it from the source temperature

Spring source

Komakusa-no-Yu: Uba-yu spring from the Yubatake source; some other baths in the hotel use mixed spring water

Spring classification

Uba-yu: acidic, sulfur-bearing sodium-magnesium sulfate spring (hydrogen sulfide type; low-tonicity, acidic, high-temperature spring)

pH

Approximately 2.5 for Uba-yu only; this is not a value for every bath

Flow rate

Not published

Water handling

The hotel FAQ describes all 20 baths at Manza Prince Hotel and Manza Kogen Hotel as free-flowing. Uba-yu cools naturally in transit and through heat exchange; water may be added for final temperature adjustment.

Day use is 11:00–16:00, with last admission at 15:00. Admission is ¥1,500 for adults and ¥750 for children aged 6–11. Face towels cost ¥110 and bath-towel rental is ¥300. Tattoo restrictions may apply to some facilities. The 45-minute private bath costs ¥3,000 in addition to day-use admission. From September 1, 2026, the baths for overnight guests are open 05:00–24:00.