Kumamoto · Yamaga & Hirayama Onsen
Hirayama Onsen Day Spa Flora
平山温泉 日帰りスパ フローラ
A day-use bathhouse on the main street of Hirayama Onsen, where inns are scattered among the rice fields of Yamaga, Kumamoto. The slippery alkaline simple-sulphur water — famed locally as 'beautifying water' — fills a main indoor pool, electric bath, waterfall massage bath, cold plunge and sauna plus two open-air baths of different sizes. Adults ¥600, children ¥300 (a bath-only course is cheaper still); open 09:30–21:30 (last entry 20:30), closed Thursdays (open if a holiday). Paid private rest rooms (10:00–16:00), a farm-produce and souvenir shop and a café round it out, and the crowd is half locals, half visitors. Kyūshū Sankō bus from Yamaga Bus Center to 'Hiraogi', then 7 minutes on foot; about 20 minutes by car from Kikusui or Nankan IC. Pair with Yamaga's lantern festival heritage and the Yachiyoza theatre.
- Price (adult)
- ¥600
- Hours
- 09:30–21:30
- Closed
- Thu
- Access
- Kyūshū Sankō bus (via Hirayama Onsen for Nankan-Kamimachi) from Yamaga Bus Center, about 10 min to 'Hiraogi' then 7 min on foot; about 20 min by car from Kikusui or Nankan IC
- Water type
- Alkaline simple
- Tattoos
- Ask ahead
- Phone
- 0968-44-5888
- Official site
- http://www.hirayama-flora.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Yamaga & Hirayama Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Slippery 'beauty water' alkaline sulphur spring
- Two open-air baths, private rooms, farm shop
- ¥600; closed Thursdays
Before you go
- No official tattoo policy is published — ask at reception.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Sauna & wellness
Rules & private
Price
Convenience
Amenities
✔ Verified operating: 2026-09 ゆる〜と（大人600円・9:30–21:30・木曜休）／るるぶ
Prices and hours change. Check official sources before visiting.
More in this area
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