Aoshima Onsen Saunas Compared: Shinwa-no-yu, Cinq-Male and ANA
Compare Shinwa-no-yu’s source-water cold bath, Cinq-Male’s auto-löyly and ANA’s ocean-view bathing area; temperatures are not published.
Checked: September 27, 2026 Three Aoshima-area baths have saunas, but their best reason to go differs. Choose by the part of the circuit you care about, then check admission and transport; a day-use ticket at the coast is not the same product as a hotel stay.
| Facility | What sets its sauna visit apart | Day-use details |
|---|---|---|
| Shinwa-no-yu | Dry sauna beside a cold bath using source water; easiest to reach from Aoshima Station | ¥700 adults; 6:00–22:00, last entry 21:30; same-day re-entry allowed |
| Hotel Aoshima Cinq-Male | Auto-löyly added to the public-bath sauna in January 2026 | Adults ¥800 weekdays, ¥1,000 weekends/holidays, ¥1,100 on special dates; children ¥500 or ¥600 on peak dates; 10:30–21:00, last entry 20:00 |
| ANA Holiday Inn Resort Miyazaki | Ocean-view public bath, outdoor rock bath, sauna and cold bath in one hotel | ¥1,100 adults; 11:00–22:00, last entry 21:00; student discount with ID |
Shinwa-no-yu: come for the spring-water cold bath
The unusual detail at Shinwa-no-yu is not a published sauna temperature or an hourly löyly schedule; the facility does not list either. Its cold bath uses source water directly. The spring is classified as an alkaline simple sulfur cold mineral spring, with a published pH of 9.4. A dry sauna, outdoor spring bath and two reservable private-use baths complete the setup.
An adult day ticket costs ¥700 and remains valid for re-entry during the same day. The facility opens at 6 a.m., and Aoshima Station is about a three-minute walk away, which makes it the easiest option here for a short visit without a car. The private-use baths are separate: reserve one for ¥1,800 for 60 minutes. Tattoos are not permitted, and the facility asks guests not to bring children who are still in diapers into the bathing area.
Cinq-Male: the clearest choice for auto-löyly
Hotel Aoshima Cinq-Male renovated its public-bath sauna in January 2026 and added auto-löyly, a timed water pour over the sauna stones. That is the most specific, dated sauna update among these three. The public bath also has a jet bath and cold bath, but no outdoor bath; the hotel’s outdoor private-use baths are a separate, reservable product and are not included in an ordinary sauna visit.
The hotel’s current notice lists September 30, 2026 as a full closure and a 3 p.m. reopening on October 1. Check again before travelling on a special date. It is also the least convenient of the three to reach by train, so add taxi or other transport costs if you are not driving.
ANA: a fuller bathing circuit, not a sauna-spec sheet
ANA Holiday Inn Resort Miyazaki has an ocean-facing public bath with a sauna, cold bath, outdoor rock bath and other tubs. The current facilities page does not list a sauna temperature or cold-bath reading. Towels are extra.
| Day-use detail | Current listing |
|---|---|
| Adult admission | ¥1,100 |
| Child admission | ¥550 |
| University student with ID | ¥650 |
| Bath hours | 11 a.m.–10 p.m. |
| Last entry | 9 p.m. |
The hotel’s online coupon lists ¥800 for adults and ¥500 for children. Blackout dates and booking conditions apply, so this is not a walk-up price. Its trial direct shuttle from Miyazaki Airport ends September 30, 2026. The ANA stop rules are directional; see the Aoshima and Kaeda transport guide before relying on the route.
All three facilities prohibit tattoos under their current direct-operator rules; the available pages do not establish a cover-up or private-room exception. Shinwa-no-yu also asks that children still in diapers not use the bath. Check child bathing rules with each property if the age or height of a child in your group is near a boundary.
If sauna hardware comes first, Cinq-Male has the most concrete recent upgrade. For the cold bath itself, Shinwa-no-yu has a local feature the other two do not advertise. ANA makes sense when you want several baths and a broad ocean view in one stop. None of the three publishes all the temperatures sauna-focused visitors sometimes look for, so do not infer a fixed setting from a photo or marketing label.
Sources and image credits
- [Shinwa-no-yu: facilities, prices, hours and rules](https://aoshima-hostel.com/hotspring/). - [Hotel Aoshima Cinq-Male: hot springs and day-use details](https://www.cinqmale.co.jp/hot_spring) and [January 2026 auto-löyly notice](https://www.cinqmale.co.jp/news/217156). - [ANA Holiday Inn Resort Miyazaki: hot springs](https://www.anahirmiyazaki.com/hotspa/) and [access](https://www.anahirmiyazaki.com/access/). - [Miyazaki Kotsu: 2026 airport–Aoshima trial shuttle](https://www.miyakoh.co.jp/news/2026/05/2026-4.html). - Images retained from the original guide: [Shinwa-no-yu](https://aoshima-hostel.com/wp-content/themes/aoshima/img/hotspring/sethum02.jpg), [Cinq-Male](https://ak-d.tripcdn.com/images/0221n12000ddy0sfc5D04_W_450_450_R5.webp), and [ANA Holiday Inn Resort Miyazaki](https://ak-d.tripcdn.com/images/0224412000h572urp65B3_W_960_274_R5.webp).Tags: Miyazaki, Aoshima, sauna, day-use onsen, cold bath
