This translation was prepared with AI assistance and reviewed by the editorial team.
Koraku no Yu is a natural onsen inside Hotel Grandspa Avenue in Amagi, Asakura. It is about a two-minute walk from both Amagi Railway and Nishitetsu Amagi stations, making it unusual among rural Fukuoka hot springs: a car is optional.
- Admission: ¥1,000 general or ¥800 for members; membership costs ¥200
- Open-air bath: women 10:00–18:00; men only when staying at the hotel, 18:30–22:00
- Private rooms: day use 10:00–22:00 from ¥2,200 per 60 minutes; no telephone booking for day use
- Address: 1677-2 Amagi, Asakura; about 160 free parking spaces
Details were rechecked on July 30, 2026. Bath access and private-room availability can change, so confirm before a special trip.
Overview and access
The hotel, public bath and private baths share one convenient station-area location. The alkaline spring is listed at pH 10.0 and has a smooth feel. This guide separates the rules because the public bath, open-air bath and private rooms do not operate in the same way.
| Item | Details |
|---|---|
| Property | Hotel Grandspa Avenue / Asakura Onsen Koraku no Yu |
| Address | 1677-2 Amagi, Asakura, Fukuoka |
| Telephone | 0946-22-1215 |
| Private-bath line | 0946-22-1126; overnight rooms require advance booking, but day-use rooms cannot be booked by phone |
| Nearest stations | About 2 minutes on foot from both Amagi stations |
| By car | About 7 minutes from Amagi IC or 19 minutes from Chikugo-Ogori IC |
| Parking | About 160 spaces, free |
Public bath hours and admission
The main bath is the simplest option for a short stop. Hotel guests use it free of charge. Shampoo, conditioner, body soap, dryers and free lockers are listed as available.
| Item | Details |
|---|---|
| Hours | 06:00–10:00 and 13:00–23:00 |
| Maintenance | No bathing 10:00–13:00 |
| General | ¥1,000 |
| Member | ¥800; ¥200 enrollment |
| Hotel guest | Included with the stay |
The open-air bath has gender-specific hours
The open-air bath is not a standard mixed schedule. Women may use it for day visits or hotel stays from 10:00 to 18:00. Men may use it only as hotel guests from 18:30 to 22:00. Male day visitors should plan around the main public bath.
Private baths: day use and overnight rooms
Seven rooms are presented mainly for day use and four larger rooms can also be used for overnight stays. Each room has its own indoor or open-air bath, and the water is fully replaced between users.
| Item | Details |
|---|---|
| Day use | 10:00–22:00; normally 60 minutes; no phone reservations |
| Seven day-use rooms | ¥2,200–3,000 per 60 minutes |
| Four overnight-capable rooms | Day use ¥2,600–3,900; overnight ¥7,500–9,000 |
| Weekday discount | 20% off Monday–Friday, excluding holidays |
| Extension | 50% of the room fee per 30 minutes |
Staying at Hotel Grandspa Avenue
The hotel was fully renovated in 2024. Check-in begins at 16:00 and check-out is by 10:00. Some room types have onsen baths; hotel guests can also use the public bath and a simple Japanese breakfast is served 06:30–09:00.
Check rooms on Rakuten Travel Check rooms on Jalan
Which visit style should you choose?
- Choose the public bath for a quick station-side soak.
- Women who want the open-air bath should arrive within its daytime window.
- Men who want the open-air bath need an overnight stay.
- Families and couples can choose a private room, but day-use availability is walk-in.
- Stay overnight to combine an onsen room, breakfast, parking and an early bath.
Combine the onsen with Asakura sightseeing
Amagi is separate from the main Harazuru Onsen district. It works well with Akizuki, the Triple Water Wheels, Roadside Station Harazuru and other Asakura stops.
Before you visit
- Check temporary maintenance and the latest private-room prices.
- Do not assume that all genders can use the open-air bath at all hours.
- Bring cash as a backup and check payment at reception.
- For tattoos, children’s mixed bathing or accessibility needs, ask the property before arrival.
