Soothing — neither hot nor cold, perfect balance.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Hiiragiya Annex is the modern wing of the Hiiragiya — one of Kyoto's most venerable and exclusive ryokan, established in 1818 and renowned for hosting Katsu Kaishū, Ōkubo Toshimichi, and other Meiji-era statesmen who shaped modern Japan during imperial court-era visits — where bicarbonate mineral spring water is offered alongside Kyoto's most refined kaiseki cuisine and the most perfectly calibrated Japanese hospitality in the world. The mineral spring waters complement a ryokan experience where every element — the ikebana arrangement, the silk fusuma partition, the bespoke nishiki textile placed in the tokonoma alcove — has been considered as part of a total aesthetic environment that is the ultimate expression of Japanese hospitality philosophy. Staying at Hiiragiya Annex in Kyoto — within walking distance of Nijo Castle, the Imperial Palace, and the Nishiki covered market — is one of the transformative cultural experiences available in Japan, with the thermal mineral bathing adding a therapeutic physical dimension to the overwhelmingly aesthetic one.