Akiu Onsen, Sendai, Miyagi
Shikaotsu-no-Yu at Tenshukaku Natural Park
A seasonal private outdoor-bath option for groups who want to book a small or large pool by the hour. It generally runs on weekends and public holidays from April through November; pool rental, park admission and bathing tax are separate charges.
Check before bathing
- Opening hours
- Seasonal operation, generally weekends and public holidays from April through November. Current operator listings show Saturday 11:00–16:50 and Sunday 11:00–15:00. The small pool is ¥2,200 per hour and the large pool ¥2,700 per hour, with park admission and a ¥70 bathing tax for high-school age and older charged separately. Confirm the available time slots when booking.
Spring & water temperature
- Spring-source temperature
- Not published.
- Bathing temperature
- No fixed temperature published.
- Spring source
- Spring used at Shikaotsu-no-Yu; the exact source name and location are not published.
- Spring classification
- A complete facility-specific spring classification has not been confirmed.
- pH
- Not published; do not substitute Ichitaro-no-Yu's pH.
- Flow rate
- Not published.
- Water handling
- Natural spring water is used in the small and large private outdoor pools. Pool-specific dilution, heating, circulation and disinfection details are not fully published.
The rental fee is per pool and does not include park admission or bathing tax. Seasonal slots and closing times should be confirmed with the operator.
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.
