List of Onsen to visit in Japan:
- Shima-Onsen, visited December 2022. Guide.
- Sukayu onsen, Aomori. Source
- Tamagawa-Onsen, Akita. The most acidic onsen. Source
- Noboribetsu, Hokkaido, visited November 2019.
- Arima onsen, Hyoto, visited January 2023
- Kusatsu onsen
- Yufuin, Oita, visited
- Beppu, visited
- Hakone, visited 2014
- Ginzan onsen, Yamagata. Inspiration for swordsmith village of Demon slayer, Kimetsu no Yaiba. Source. Visited June 2023 day trip, bathe at Takimikan.
- Minakami-machi, Gunma. Guide
- Zao, Yamagata
- Naruko onsen, Miyagi
- Kirishima, Kagoshima / Maruo onsen.
- Unzen / Obama onsen, Nagasaki.
- Dogo Onsen
- Shirahama Onsen.
- Dake onsen, Mt Adatara, Fukushima.
- Shirahone, Nagano.
- Gero, Gifu, Takayama, day trip from Nagoya. Guide. Visited June 2023 Suimeikan, Bosenkan, Yamagataya.
- Kinosaki - walk around town
- Tokachigawa, Hokkaido
- Utoro, Hokkaido, source. Visit to lake.
- Shikotsu-ko-onsen resort, Hokkaido
- Toyako onsen, Hokkaido
- Matsushima onsen, Miyagi, Tohoku. Guide
- Yamashiro
- Ito, Izu peninsula, visited.
Guide for top 3 onsen according to Wikitravel.
Three Great Hot Springs 三大温泉 Sandaionsen
- Atami, Shizuoka
- Beppu, Oita
- Shirahama, Wakayama
Three Famous Springs 三名泉 Sanmeisen. This list, too, was authored by Hayashi Razan.
- Arima Onsen, Hyogo
- Gero Onsen, Gifu
- Kusatsu Onsen, Gunma
Three Old Springs 三古湯 Sankosen
- Dogo Onsen, Ehime
- Arima Onsen, Hyogo
- Shirahama, Wakayama
Three Baths of Fuso 扶桑三名湯 Fuso-sanmeiyu. Fuso is a poetic name for Japan and this one is credited to traveling haiku poet Matsuo Basho.
- Arima Onsen, Hyogo
- Yamanaka Onsen, Kaga, Ishikawa
- Kusatsu Onsen, Gunma
