Unazuki Yamanoha (Day Use)

Spring-source temperature

87.8°C at the Kuro-nagi source; this is not an in-hotel bath temperature

Bathing temperature

Not published

Spring source

Unazuki Onsen water drawn from the Kurobe Gorge's Kuro-nagi source

Spring classification

Simple spring (low-tonicity, weakly alkaline, high-temperature spring)

pH

Not published; only the weakly alkaline classification is confirmed

Flow rate

Not published for the hotel; the 3,000 tonnes/day figure for Unazuki as a whole is not the hotel's allocation

Water handling

The Daikokube indoor baths and Tanayu indoor and outdoor baths use circulation and filtration, with water added and heated for temperature control. The Daikokube outdoor bath and private baths are free-flowing with water added; private baths are not available to day visitors. Women day visitors use Tanayu, while men use Daikokube, so their water systems differ.

Day-use hours and admission depend on the day: weekdays 13:00–16:00 at ¥1,200; Saturday 13:00–15:00 and Sunday afternoon until 16:00 at ¥1,500. The Sunday start time is not published. Towels are included; bath towel rental is ¥330. Tattoos are prohibited. Capacity, maintenance and hotel operations can interrupt day use, so check before travelling.