KAMENOI HOTEL Kusatsu Yubatake

Spring-source temperature

Yubatake: 55.7°C; Bandaiko: 95.4°C; Sainokawara: 49.3°C. These are source-system values, not the hotel's bath temperatures.

Bathing temperature

Not published; do not substitute source temperatures

Spring source

Yubatake, Bandaiko and Sainokawara springs, assigned to different baths

Spring classification

All three are acidic spring systems. The hotel's and Kusatsu-Shirane's published classifications differ in detail, so they are not combined into a single analysis-sheet classification.

pH

Yubatake: 2.08; Bandaiko: 1.7; Sainokawara: 2.08

Flow rate

Yubatake system: 4,437 L/min; Bandaiko system: 6,200 L/min; Sainokawara system: 1,400 L/min. These are source-system figures, not the hotel's allocation or bath flow.

Water handling

The hotel distributes the three spring sources among its baths. It explicitly describes the large bath and rock bath as 100% free-flowing. For baths whose individual treatment conditions are not published, water addition, heating, recirculation and disinfection are left unspecified.

Guests with tattoos are not permitted to use the baths. The full current spring analysis sheet was not available. Figures for source-system output and temperature do not describe the hotel's allocation or fixed bath temperatures.