Yamanokuchi, Miyakonojo, Miyazaki Prefecture
Aoidake Onsen, Spa & Leisure Park
A good stop between Miyazaki City and Miyakonojo if you want a distinct spring, several bathing options, a forest-side outdoor bath and time to relax. Tattooed visitors are not accepted, and a quick budget soak is not its strength.
Check before bathing
- Opening hours
- Day admission is ¥700 for adults on weekdays and ¥900 on weekends and holidays; morning and evening discounts are ¥600/¥800. Open 07:00–22:00, last entry 21:00; the day-use bath closes at 21:30. Busy periods may have special pricing. From 14–18 September 2026, the second-floor Yuru-cotto stone spa and cooldown room are closed for renovation.
- Tattoo policy
- Tattoos are prohibited.
Spring & water temperature
- Spring-source temperature
- 40°C in the facility's current spring information, measured when the air temperature was 9°C; it is not a fixed bath temperature.
- Bathing temperature
- No fixed figures are published. The facility describes the main bath as comfortable, the hot bath as hotter and the body-temperature bath as near body temperature.
- Spring source
- Aoidake Onsen.
- Spring classification
- Sodium bicarbonate-chloride spring.
- pH
- No precise figure is published; the facility describes the spring as weakly alkaline.
- Flow rate
- Not published.
- Water handling
- The facility lists natural spring water in the main, high-temperature, walking, outdoor and body-temperature baths. Current text pages do not publish water addition, heating, circulation and disinfection details for each pool, so not all pools are described as source-flowing.
Bathing indications
The facility lists general indications including cuts, peripheral circulation issues, sensitivity to cold and skin conditions. This is not a treatment guarantee.
The stone spa and cooldown room are closed 14–18 September 2026 for renovation. Tattoos are prohibited.
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.
