According to Ministry of the Environment statistics, Shizuoka (Chubu) has 118 onsen areas and 2,185 hot-spring sources. This page lists 47 onsen in Shizuoka with their water types. The most common water type among them is Chloride Spring (13 onsen).
Source: Ministry of the Environment, FY2024 Hot Spring Utilization Survey (as of March 31, 2025). Best-known onsen = most annual Wikipedia views.
| Water Type | Count | Share |
|---|---|---|
| Chloride Spring | 13 | 28% |
| Simple Thermal Spring | 11 | 23% |
| Sulfate Spring | 8 | 17% |
| Sulfur Spring | 6 | 13% |
| Other | 6 | 13% |
| Carbon Dioxide Spring | 2 | 4% |
| Unknown | 1 | 2% |
| Facility | Water Type |
|---|---|
| Yamada-yu A neighborhood public bathhouse using spring water from Atami Onsen, well loved by locals. | Chloride Spring Sodium – chloride spring |
| Marine Spa Atami | Unknown |
| Hanasaki no Yu | Unknown |
| Fugaku Onsen Hana no Yu | Simple Thermal Spring Simple spring |
| Yu Trio | Unknown |
| Itawari no Yu | Chloride Spring Sodium – chloride/bicarbonate spring (hypotonic, alkaline, low-temperature) |
| Shimada City Tashiro no Sato Onsen Itawari no Yu | Unknown |
| Onsen Town | Summary |
|---|---|
| Shuzenji Onsen Legends & Origins | According to legend, in 807 the monk Kukai (Kobo Daishi), traveling the provinces, saw a boy washing his sick father in the cold water of the Katsura River and, moved to pity, struck a rock with his ritual vajra pestle, causing a healing spring to gush forth. This spring remains in the riverbed today as 'Tokko no Yu.' Details |
| Shuzenji Onsen Literature | The site of the 'Great Illness of Shuzenji,' when Natsume Soseki, visiting for treatment in 1910, nearly died from a massive hemorrhage. It is recorded in his essay Omoidasu Koto Nado and is said to have influenced his later work. Details |
| Shuzenji Onsen Geopark | One of the sites of the Izu Peninsula UNESCO Global Geopark, spanning 15 municipalities in eastern Shizuoka Prefecture. The Shuzenji Onsen geosite traces how undersea volcanoes born from the subducting Philippine Sea Plate collided with and were uplifted onto Honshu to form the Izu Peninsula, and covers the hot-spring town around the Tokko-no-Yu bath. The geopark was certified Japan's 9th UNESCO Global Geopark in 2018. Details |
| Matsuzaki Onsen Travelogue | A hot-spring town on the west coast of the Izu Peninsula, in Matsuzaki, where streets of namako-walled houses remain. Sankoso, the inn that served as the setting of Tsuge Yoshiharu's travel manga Chohachi no Yado (The Inn of Chohachi, 1968), is still in business and looks much as it does in the work. Details |