Hot springs in Gero

A riverside hot spring town on the banks of the Hida River in Gifu Prefecture, counted alongside Arima and Kusatsu as one of Japan's three great hot springs. The designation goes back to the writings of the Muromachi-period monk Banri Shukyu and was later confirmed by Edo-period scholars. The waters here are a sodium bicarbonate spring at pH 9.2, known for their smooth, silky feel.