Fuji Saiko Onsen; Izumi no Yu
Fujikawaguchiko, Yamanashi, Japan
- Location
- Fujikawaguchiko, Yamanashi, Japan
- Water type
- sodium chloride, thermal
- Temperature
- 40 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Fuji Saiko Onsen Izumi no Yu, in Fujikawaguchiko, Yamanashi Prefecture, offers sodium-chloride thermal water at 40°C. It has an indoor bath, an outdoor bath (rotenburo) and a sauna, in the Fuji Five Lakes area.
Insider tip — Izumi no Yu sits near Lake Saiko (西湖) — the least-visited of the Fuji Five Lakes, preserving the wild primeval atmosphere of the Aokigahara forest at its western edge. The mysterious Narusawa Ice Cave and Fugaku Wind Cave are within walking distance. Mt. Fuji's reflection appears on calm mornings on Lake Saiko's mirror surface. This onsen on the quieter west side of Fuji's lake district offers a more meditative alternative to the crowds of Kawaguchiko.
Nearby
Narusawa Onsen Yamanashi
Narusawa
Shojiko Onsen Yamanashi
Shojiko, Fujikawaguchiko, Yamanashi
Kawaguchiko Onsenji
Fujikawaguchiko, Yamanashi
Fuji Kawaguchiko Onsen
Fujikawaguchiko, Yamanashi
Kawaguchiko Onsen Yamanashi
Kawaguchiko, Fujikawaguchiko, Yamanashi
Fugaku Group Fuji Hot Spring
Fuji Kawaguchiko, Yamanashi Prefecture, Chubu
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride & thermal water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.