Lake Toya Onsen, Toyako, Hokkaido
Toyako Kohantei Day-Use Bath
The main draw is the 9th-floor bath and open-air bath above the lake. The published spring analysis describes Toyako Onsen generally, not a dedicated well for this hotel, and the hotel's day-use window is limited to the afternoon.
Check before bathing
- Opening hours
- Day use 13:00–19:00. Check the hotel before travelling for current admission terms and any access changes.
Spring & water temperature
- Spring-source temperature
- 50.3°C for the Toyako Onsen data published by the hotel.
- Bathing temperature
- No fixed pool temperature published.
- Spring source
- Toyako Onsen; the published figures describe the area's spring supply, not a confirmed dedicated hotel well.
- Spring classification
- Sodium-calcium chloride spring; neutral, low-tonicity and high-temperature.
- pH
- 6.7.
- Flow rate
- 1,410 L/min for the area-wide Toyako Onsen supply; not an individual hotel bath flow rate.
- Water handling
- Natural spring water supplies the 9th-floor large bath and open-air bath. Current main pages reviewed do not fully detail water addition, heating, circulation or disinfection by pool.
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.
