A collection of 9 hot springs on Mt. Kirishima, famous as the site of Sakamoto Ryoma's honeymoon, considered Japan's first.

The exact origins of Kirishima Onsen Resort remain unclear, but the naturally occurring hot springs arising from the volcanic activity of Mt. Kirishima are believed to have been used by local people since ancient times. During the Edo period, the area developed as a therapeutic retreat under the Sat…