Yobuko Onsen: Day-Use Hot Spring Baths & Prices (Saga)

At the northern tip of Karatsu City, in the port town of Yobuko facing the Genkai Sea, lies Yobuko Onsen. The town has the lively spirit of a fishing community famous nationwide for its live squid sashimi, and baths overlooking the sea offer views of Yobuko Bridge and a calm inlet.

Highlights

From baths that command the sea, you can watch the graceful silhouette of Yobuko Bridge arcing over blue water and the fishing boats coming and going. Bathing amid the sea breeze brings an openness unique to a port town. Yobuko Bridge, opened in 1989, links the island of Kabeshima across the water with the mainland, and its beautiful arch is a symbol of Yobuko. And when it comes to Yobuko, the translucent live squid sashimi is a must. Its firm texture and sweetness are exceptional, and paired with the hot spring it makes an unforgettable travel memory.

Enjoying the Seasons

Yobukos squid changes by season, so fresh flavor can be enjoyed year round. Spring and summer bring the light kensaki squid, while autumn and winter offer a different depth of taste. Peek in at the Yobuko morning market, said to be one of Japans three great morning markets, and you will find dried fish and seafood on display, a glimpse into port-town life. In summer the area also bustles as a base for coastal marine leisure.

Access and Basic Information

Yobuko lies about thirty minutes by car from central Karatsu, heading north along the Genkai coast to a spot near the harbor. Day-use bathing facilities let you drop in easily alongside a squid meal. There is no train station, so a Showa Bus from the Karatsu Ote-guchi bus center or a car is convenient.

A Quick Tip

Live squid sashimi depends on each shops daily catch, so for a sure taste, arrive right at opening or reserve ahead. The morning market runs in the morning, so visit early.

Practical Travel Notes

• Rising in the port town of Yobuko on the Genkai Sea, its sea-view baths look out over Yobuko Bridge and the inlet.
• Yobuko Bridge opened in 1989; its beautiful arch linking the island of Kabeshima with the mainland is a symbol of the port town.
• The specialty is live squid sashimi; the variety changes by season, such as kensaki squid in spring and summer, so fresh flavor can be enjoyed year round.
• The Yobuko morning market, said to be one of Japans three great morning markets, is held along Asaichi-dori and is busiest in the morning, with dried fish and seafood on display offering a glimpse of port-town life.
• There is no train station, so a Showa Bus from the Karatsu Ote-guchi bus center or a car is convenient; it is about thirty minutes by car from central Karatsu.
• Live sashimi depends on the daily catch, so for a sure taste arrive at opening or reserve; fees and hours vary by facility, so please check in advance.

Practical Information for Your Visit

• Day bathing: Yobuko Daiba no Yu (inside Yobuko Daiba Minato Plaza / 1740-11 Yobuko, Yobuko-cho, Karatsu City / tel. 0955-82-2111). The bathing rooms are open 10:00-20:00. Adults (junior high school age and above) 700 yen, or 600 yen for residents of Karatsu City; after 5:00 p.m. 520 yen, or 450 yen for city residents; children (aged 4 through elementary school) 350 yen, or 300 yen for city residents; free of charge for children under 4. Closed on the 3rd Wednesday of every month (the following day when it falls on a public holiday) and from December 31 to January 2
• Spring quality: The view bath uses a blend of the Takakushi source and the Takakushi No. 2 well (a sodium bicarbonate and chloride spring). The indoor bath is an artificial radium spring
• Re-entry: On the day of your visit you may re-enter as many times as you like between 10:00 and 20:00
• Access: Yobuko has no railway station. Take a Showa Bus service from Karatsu Otekuchi Bus Center, or drive about 30 minutes from central Karatsu
• Inside the building: You may bring your own food and drink into the rest room, including seafood and prepared dishes bought at the adjoining Tairyo Senka market. There is self-service cold water and tea, and massage machines (100 yen for 10 minutes)
• Rooms for hire: Using the exchange room (meeting room) or the cooking experience room requires an application in advance
• Bathing etiquette: The discounts (for those aged 65 and over and for holders of a disability certificate) apply to residents of Karatsu City, and you may be asked to show proof

* During events such as the Yobuko Port Festival the parking lot can fill up. The facility may close temporarily when a typhoon is approaching, so check the notices on the official website.

(Sources: Yobuko Daiba no Yu official website, Karatsu City tourism information and others. As of July 2026)