Lake Yamanaka, Yamanashi
Yamanakako Onsen Benifuji-no-Yu
Before its closure, this was a good-value choice for a highly alkaline spring and a broad view of Mount Fuji. The operator announced a temporary closure from September 28, 2026, with no reopening date confirmed in the research check; do not plan a visit until a current reopening notice appears.
Check before bathing
- Opening hours
- Temporarily closed from September 28, 2026; reopening date not announced in the checked material. Before closure, weekday hours were 11:00–19:00 and weekends and public holidays 11:00–20:00. The former adult admission was ¥900; these are historical reference details, not current access information.
Spring & water temperature
- Spring-source temperature
- 26.1°C.
- Bathing temperature
- No fixed pool temperature is published; a separate source-water lukewarm pool is available when the facility is operating.
- Spring source
- Benifuji-no-Yu spring.
- Spring classification
- Alkaline simple spring.
- pH
- 10.3.
- Flow rate
- 150 L/min.
- Water handling
- The operator identifies the indoor public bath, outdoor baths and source-water lukewarm pool as natural spring water. Complete pool-by-pool details on dilution, heating, circulation and disinfection are not published.
The facility announced its temporary closure starting September 28, 2026. Do not rely on the former hours or price until reopening is confirmed.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
