O-furo Cafe and Tamagawa Onsen in Saitama Offer "Indifferent Temperature Bathing" for Summer. Also Proposing Heat Acclimation in Saunas and Hot Springs for Heatstroke Prevention.

Onsen Dojo Co., Ltd. (Tokigawa-machi, Hiki-gun, Saitama Prefecture, CEO: Kazuki Yamazaki) will be implementing "Indifferent Temperature Bathing" in some of its bathtubs at the following day-use hot spring and bathing facilities in Saitama Prefecture, as the temperature begins to rise.

Indifferent temperature bathing is a bathing method using water at a temperature similar to human body temperature. This bathing temperature, which does not burden the body, allows for longer soaks and provides relaxation for both mind and body through a leisurely experience.

Bathtubs at normal temperatures will also be available. It is said that sweating during bathing and improving the function of sweat glands (heat acclimation) can help prevent heatstroke. We hope you will manage your physical condition through bathing in preparation for the full heat of summer.

<Event Period>

Date and Time: Starting July 1, 2026

<Participating Stores>

Showa Retro Onsen Sento Tamagawa Onsen (Tokigawa-machi, Hiki-gun, Saitama Prefecture)

Men's and Women's Open-Air Baths

https://tamagawa-onsen.com/

Onsen & Fermentation O-furo Cafe Hakujyu no Yu (Kamikawa-machi, Kodama-gun, Saitama Prefecture)

Men's and Women's Open-Air Baths

https://ofurocafe-hakujyu.com/

O-furo Cafe utatane (Saitama City, Saitama Prefecture)

Men's and Women's Indoor Baths

https://ofurocafe-utatane.com/

O-furo Cafe HARENIWA no Yu (Kumagaya City, Saitama Prefecture)

Men's and Women's Stretch Baths

https://ofurocafe-hareniwanoyu.com/

BIO-RESORT HOTEL&SPA O Park OGOSE (Ogose-machi, Iruma-gun, Saitama Prefecture)

Men's and Women's Open-Air Baths

https://opark.jp/

Chichibu Yumoto Buko Onsen (Yokoze-machi, Chichibu-gun, Saitama Prefecture)

Men's and Women's Open-Air Baths

https://buko-onsen.co.jp/

*If the outside temperature is low, the water temperature may be returned to normal.

ONDO Holdings Co., Ltd.

Under its umbrella are Onsen Dojo Co., Ltd., Kii company Co., Ltd., Sakana to Co., Ltd., and Saitama Musashi Heat Bears Co., Ltd. We are working to create new value, contribute to regional revitalization, and foster human resources with the aim of "making the region sizzle." https://ondoholdings.com/