According to Ministry of the Environment statistics, Yamanashi (Chubu) has 29 onsen areas and 304 hot-spring sources. This page lists 46 onsen in Yamanashi with their water types. The most common water type among them is Simple Thermal Spring (18 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 |
|---|---|---|
| Simple Thermal Spring | 18 | 39% |
| Sulfur Spring | 8 | 17% |
| Chloride Spring | 7 | 15% |
| Sulfate Spring | 5 | 11% |
| Bicarbonate Spring | 4 | 9% |
| Iron Spring | 1 | 2% |
| Radium Spring | 1 | 2% |
| Other | 1 | 2% |
| Unknown | 1 | 2% |
| Facility | Water Type |
|---|---|
| Fujiyama Onsen | Unknown |
| Hottarakashi Onsen | Simple Thermal Spring Simple spring |
| Yoshinoike Onsen | Simple Thermal Spring Simple spring |
| Tsuzumigawa Onsen | Simple Thermal Spring Simple spring |
| Hayabusa Onsen | Simple Thermal Spring Simple spring |
| Isawa Onsen Sakura Onsenkan A day-use hot spring facility run by Fuefuki City, using spring water from Isawa Onsen. | Simple Thermal Spring Alkaline simple spring |
| Name | What kind of onsen |
|---|---|
| Sanjo no Yu Details | A mountain-hut hot spring along the trail to Mt. Kumotori in Okutama, welling up in a valley at the headwaters of the Tama River, about a 3-hour walk from the end of the road. |
| Onsen Town | Summary |
|---|---|
| Shimobe Onsen Travelogue | An old simple-type hot spring in Minobu, said to be one of Takeda Shingen's secret healing baths. In an essay in Tsuge Yoshiharu no Onsen, Tsuge describes a round trip starting here at Shimobe and continuing to Yugawara and Hakone. Details |