Ureshino Gensen Hyakunen-no-yu – Illustrative onsen mood image
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Saga · Ureshino Onsen

Ureshino Gensen Hyakunen-no-yu

うれしの源泉 百年の湯

One minute from the Ureshino bus centre, the only day-spa in town with its own source (formerly Motoyu Onsen). Silky bicarbonate water — one of Japan's 'three great beauty baths' — in a large indoor bath, open-air pool and sauna. Many family baths (from ¥1,800/50 min + entry). Open 9 am–10 pm.

Price (adult)¥690
Hours09:00–22:00 (last entry 21:30; family baths 21:00)
Closed4th Wednesday (varies some months)
TattoosAsk ahead

Essentials

Price (adult)
¥690
Hours
09:00–22:00 (last entry 21:30; family baths 21:00)
Closed
4th Wednesday (varies some months)
Access
1 min walk from Ureshino Onsen bus centre
Water type
Bicarbonate spring
Tattoos
Ask ahead
Admission
Weekdays adults ¥690 / children (3 to elementary) ¥300; weekends & holidays ¥840 / ¥350; peak days (11–16 Aug, 28 Dec–4 Jan) ¥890 / ¥400. 10-ticket book ¥5,800. Family baths per 50 min: Fuji & Shirasagi ¥1,800, Hinoki & Roten ¥2,500, Kohaku ¥3,000 (plus admission; no reservations). Private rest room ¥2,400 / 2 h. Towels ¥220, bath towels ¥660
Baths
Large gender-separated main baths (free-flowing), rotenburo and sauna; eight family baths (two open-air); the Hyakunen-tei restaurant (onsen yudofu set meals), Yubian massage, private rooms, big lounge and shop. Shampoo, conditioner, body wash, dryers and lockers free
Water
Sodium bicarbonate-chloride spring from its own source, the “Motoyu Onsen” opened in 1915 and used for over a century — the only public bath in Ureshino with a private source. The old building, which survived the 1922 fire, was replaced by the current facility in 2016
Parking
Free, ~50 cars. 1–2 min from the Ureshino Onsen bus centre
Phone
0954-20-2525
Official site
100nen-spa.co.jp ↗
Open in Google Maps
Google Maps ↗

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Why go

  • Ureshino's only self-sourced day spa
  • Silky beauty water from 9 am
  • Plenty of private family baths

A century-old private source and eight family baths: Ureshino’s all-in-one day spa

Hyakunen-no-yu (“hundred-year bath”) is Ureshino’s only public bath with its own source — the Motoyu spring opened in 1915 and used ever since — and its ageing building was replaced with a modern one in 2016. It showcases Kyushu’s “family bath” culture with eight private rooms, two of them open-air, letting couples and families have the beauty water to themselves in 50-minute slots; add the main baths, rotenburo, sauna, a restaurant serving onsen yudofu set meals, massage and private rest rooms and you can easily spend half a day. At ¥690 on weekdays it is about half the price of ryokan day bathing (¥1,100–1,500). If Siebold’s Bath is the nostalgic public bathhouse, this is the convenient spa — right in front of the bus centre, easy even with luggage.

Tips & cautions

- Family baths are first-come, no booking; weekend afternoons can mean an hour’s wait — arrive in the morning. Online prepaid tickets (e.g. ¥630 weekdays) and JAF discounts exist.

- Surcharges on weekends, holidays, Obon and New Year.

- The restaurant closes 14:00–16:30 on weekdays; yudofu set plans need booking.

- Closed 4th Wednesday, but this shifts some months — check ahead.

- 19:00–20:00 is relatively quiet.

- Ureshino-Onsen Shinkansen station is over 2 km from the town — take a bus or taxi.

Getting there

1 min from the JR Kyushu bus centre (Shimojuku-otsu 2202-8). ~7 min by bus or 5 min by taxi from Ureshino-Onsen Shinkansen station; 30 min by bus from Takeo-Onsen. ~2 km / 5 min from Ureshino IC. Free parking for ~50.

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

Sauna & wellness

Amenities

LockersSaunaDiningRest areaParking

✔ Verified operating: 2026-09 Operating status and rates cross-checked against the official site and onsen guides (full source notes in Japanese on the JA page)

Prices and hours change. Check official sources before visiting.

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