The Stone Bulletin Board
showing the history of Ishifuro Sauna made in 1870 (Bunka 7)
The Ishifuro Sauna is now widely told to be built by Kuukai,
a great priest in Heian Era born in Kagawa Pref. The Sauna was
once under the control of Hokkeji Temple, but nowadays being
managed by the local community treasury union.