What is Karatsu Castle?
Karatsu Castle (Karatsu-jō) is a historic castle located in Karatsu City, Saga Prefecture, also affectionately known as "Maizuru Castle."
Built in 1602 by Terasawa Hirotaka, the first feudal lord of the Karatsu Domain, the castle sits on a hillside overlooking the Genkai Sea, offering spectacular views alongside its impressive appearance.
The current Karatsu Castle keep is a reinforced concrete structure built in 1966 for tourism, and it is also popular as a museum where visitors can learn about the castle’s history and local culture.
It is also famous as a cherry blossom viewing spot; in spring, the contrast between the blooming cherry trees and the castle attracts many visitors.

Highlights of Karatsu Castle
1. Breathtaking views from the keep
From the castle keep you can look out over Karatsu Bay and the Niji-no-Matsubara pine grove.
On clear days, the blue of the Genkai Sea and the green stretch of the pine grove create a beautiful contrast.
At sunset, the sun sinking into the sea makes the view even more spectacular.
2. Exhibits that bring history to life
Inside Karatsu Castle are exhibits introducing the castle’s history and local culture, including Karatsu ware.
It’s a must-see spot for history enthusiasts.
The displays include valuable documents and weapons from the era of Terasawa Hirotaka.
3. Seasonal scenery
In spring, about 200 cherry trees bloom, and Karatsu Castle becomes lively as a top “cherry blossoms and castle” viewing spot.
In autumn you can enjoy the beautiful combination of autumn leaves and the castle.
The quiet atmosphere in winter is also attractive and popular with photographers.
4. Strolling the castle town
Near Karatsu Castle you’ll find historic streets where you can visit Karatsu ware workshops and traditional buildings.
It’s recommended to enjoy a walk through the town as part of your visit.
5. Nighttime illumination
Karatsu Castle is illuminated at night, allowing you to enjoy its magical appearance.
Illuminations during special events are particularly loved by locals.

How to get there
By public transportation
- Train: About a 20-minute walk from JR Karatsu Station or about 5 minutes by taxi.
- Bus: Tourist buses operating within Karatsu City are also convenient to use.
By car
- Expressway: About 15 minutes from the Karatsu IC on the Nishi-Kyushu Expressway.
- There are paid parking lots around the castle.

How to enjoy Karatsu Castle
1. Take photos at the keep
Enjoy taking commemorative photos with family and friends against the spectacular backdrop from the keep.
Compositions that include both the sea and the castle are especially popular.
2. Check seasonal events
Special events are sometimes held during the cherry blossom season and the autumn foliage season.
Be sure to experience local festivals and markets as well.
3. Shop for Karatsu ware
There are shops around Karatsu Castle selling Karatsu ware, the local specialty pottery.
Finding a favorite piece of pottery to take home makes a nice souvenir.
4. Enjoy a picnic
During cherry blossom season, it’s recommended to bring a bento and enjoy a picnic around the castle.
You can relax on the spacious lawns or in the shade of the trees.

Useful information for travelers
- Opening hours
- The castle keep is open from 9:00 to 17:00 (last admission 16:40).
- It may be closed during the year-end and New Year holidays.
- Admission fees
- Adults (15 and over): 500 yen
- Elementary & junior high students: 250 yen
- Preschool children: Free
- Recommended attire
- There are many stairs inside the castle, so comfortable walking shoes are recommended.
- Notes
- Cherry blossom season can be crowded, so visiting early in the day is recommended.
- There is no elevator in the keep, so those with mobility concerns should check in advance.
Summary
Karatsu Castle is a sightseeing spot in Saga Prefecture where you can enjoy beautiful scenery and a historic atmosphere.
From the spectacular views from the keep to seasonal landscapes and strolling through the surrounding castle town, it’s full of attractions.
Visit Karatsu Castle to spend a special time and discover something new each time you come.
Frequently Asked Questions
Q1. How long does it take to tour Karatsu Castle?
Including time to view the keep and stroll the surrounding area, about 1–2 hours is recommended.
Q2. Is the castle accessible by wheelchair?
The interior has many stairs, and wheelchair movement can be difficult in some areas. However, exploring the surrounding area is possible.
Q3. When is the best time to visit?
Spring for cherry blossoms and autumn for foliage are recommended, but you can enjoy scenery unique to each season.
Enjoy a trip of history and spectacular views at Karatsu Castle!