Myoken Onsen, Kirishima, Kagoshima Prefecture
Myoken Ishiharaso
A useful benchmark for a first visit to Myoken if clear information about water treatment and a riverside setting matter most.
Check before bathing
- Opening hours
- Day bathing 11:30–15:00; last admission 13:30. Maintenance closures may occur, so confirm on the day if making a special trip.
- Tattoo policy
- The current first-party information reviewed does not confirm a tattoo policy. Check with the ryokan before visiting.
Spring & water temperature
- Spring-source temperature
- About 56°C at the self-flowing source; this is not a bathing-pool temperature.
- Bathing temperature
- The heat exchanger lowers the water to around 42°C for supply. This is not a fixed measured temperature for every pool.
- Spring source
- The ryokan's Amaten-den spring system, supplied by seven in-house springs.
- Spring classification
- Sodium-calcium-magnesium bicarbonate spring.
- pH
- Not published in the current material summarized here.
- Flow rate
- The ryokan gives about 150 L/min as an example of water filling a bath over an hour; it is not a combined yield figure for all seven springs.
- Water handling
- The ryokan says it does not add water or heat the source before use. Its self-flowing water at about 56°C passes through a heat exchanger, with limited air contact, to reach around 42°C while retaining its mineral content. Seven springs supply different baths. The ryokan gives about 150 L/min as a design example of water filling a bath in an hour; this is not presented as the combined output of all seven springs. It also describes operation without dilution or chlorine disinfection.
Bathing indications
The ryokan describes the bicarbonate spring's general bathing feel and skin-conditioning properties. This is not a medical treatment guarantee.
The ryokan says it does not add water, heat the source directly or use chlorine disinfection. A heat exchanger cools the source water while limiting air contact.
Day admission is ¥1,800 for adults and ¥900 for children, tax included. Cash only; no reservation is required.
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.
