A gathering of springs
Kirishima Onsenkyo is not a single town but the name for springs scattered over the flanks of the Kirishima range. Kirishima Onsen Ichiba lists nine, Shinyu, Hayashida, Iodani, Maruo, Kurikawa, Yunotani, Tonoyu, Sekihira and Nonoyu, while Kirishima Hotel speaks of 'eight large and small'. Maruo is the hub, and steam from the sources rises all over the valleys.[1][3]
Japan's first honeymoon
In 1866 Sakamoto Ryoma and Oryo travelled to Kirishima so that Ryoma could recover from wounds suffered at the Teradaya Incident, a trip now called Japan's first honeymoon. According to Wikipedia they visited both Iodani and Einoo springs. In the early Showa era the poets Yosano Akiko and Tekkan also stayed at Iodani, and Kirishima Hotel's outdoor baths bear their names.[2][3][5]
Water shaped by the volcano
According to Wikipedia, Iodani was found in 1714 and Maruo in 1819. Today all of Iodani's water goes to Kirishima Hotel, where 14 sources flow straight into the tubs. That one inn can offer four kinds of water shows how many separate paths the hot water takes beneath the volcano.[5][3]