Ōita · Nagayu Onsen
Ramune Onsen-kan
ラムネ温泉館
The symbol of Nagayu, said to have Japan's most carbonated water. Sink into the 32°C open-air pool and silver bubbles coat your whole body. The charred-cedar and plaster building by architect Terunobu Fujimori is a sight in itself.
- Price (adult)
- ¥500
- Hours
- 10:00–22:00
- Closed
- 1st Wed (2nd Wed in Jan & May)
- Access
- 30 min by bus from JR Bungo-Taketa Station
- Water type
- Bicarbonate spring
- Tattoos
- Ask ahead
- Phone
- 0974-75-2620
- Official site
- www.lamune-onsen.co.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Nagayu Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Bubbles cling all over in high-CO₂ water
- Long soaks in 32°C water
- Architecture by Terunobu Fujimori
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
Rules & private
Mood & scenery
Price
Convenience
Amenities
✔ Verified operating: 2026 jalan / 2026-09 再確認（営業中）
Prices and hours change. Check official sources before visiting.
More in this area
Takegawara Onsen
Founded in 1879, with its 1938 wooden building and curved gable, Takegawara is the symbol of Beppu Onsen. A regular bath costs ¥300 — a deep, hot pool down a flight of steps. The famous sand bath has you buried in warm sand by staff while wearing a yukata. Bring your own soap and shampoo.
Hyotan Onsen
A large complex where you can try Kannawa's specialties — waterfall bath, sand bath and steam bath — in one place. It once earned three Michelin stars and is used to overseas guests. Many private family baths; tattooed visitors are directed to these. A restaurant serves hell-steamed dishes. Open until 1 am.
Shitan-yu at Lake Kinrin
A thatched communal bath on the shore of Lake Kinrin. Unstaffed — drop ¥300 in the box at the door. Changing area and bath share one room; an indoor pool and a half-open pool facing the lake, and it is mixed bathing with clear water and little screening, so it's a challenge for women. Right in busy central Yufuin, but quiet at the 10 am opening.