10 Castles in Nagasaki worth your time
Japan Gems
Nagasaki Prefecture has eight castles, including Hinoe Castle and Kushima Castle. These castles offer a look into the region's past.
Nagasaki has 10 castles on Japan Gems. Below are the 10 we can tell you the most about — each one written up in English from Japanese sources, with what to see and how to get there. See all castles in Nagasaki.
01
Hara Castle
NAGASAKI · CASTLE 原城
A UNESCO World Heritage site and former fortress where the Shimabara Rebellion reached its tragic conclusion in the 17th century.
What it is
- A National Historic Site and UNESCO World Heritage location founded in 1496.
- The final battlefield of the Shimabara Rebellion led by Amakusa Shiro.
- A major geopoint within the Shimabara Peninsula Geopark.
- One of the Continued Top 100 Japanese Castles.
What to see
- Excavated human remains, crosses, and lead bullets from the 1637 siege.
- The ruins of a castle renovated by Arima Harunobu in the late 16th century.
- Historical markers commemorating the rebel forces and the castle's abandonment.
Getting there
- The site is a 15-minute walk from Harajomae bus stop.
02
Shimizuyama Castle
NAGASAKI · CASTLE 清水山城
Shimizuyama Castle is a historic mountaintop fortress with visible ruins and town views.
What it is
- Long, narrow stronghold built in the late sixteenth century.
- Likely complemented defenses of Kaneishi Castle.
- Built for warlord Toyotomi Hideyoshi's planned invasion.
What to see
- Three enclosures built on flattened terraces.
- Connecting corridor spanning 500 meters.
- Terraces reinforced with stone ramparts.
- Ruins of entrances and walls are clearly visible.
- View over modern town and port of Izuhara from third enclosure.
Getting there
- Accessible via a hiking trail.
- Trail ascends to the third enclosure.
- Trail follows the ridge from the third enclosure.
03
Kaneda Castle
NAGASAKI · CASTLE 金田城
Kaneda Fort is a historic mountaintop stronghold with stone walls, offering views of the Korean Peninsula.
What it is
- Mountaintop stronghold built by the Yamato government.
- Constructed in the late seventh century.
- Part of a network of fortifications to protect Japan.
What to see
- Long sections of stone walls, up to 6 meters high.
- Summit of 276-meter Mt. Jo.
- Korean Peninsula visible from summit on clear days.
- Modern military facility from 1901.
- Cannon battery installed on the summit.
- Several gates for fort entrance from the south.
Getting there
- 2.4-kilometer hiking trail to the peak.
- Climb takes around an hour in favorable weather.
04
Kushima Castle
NAGASAKI · CASTLE 玖島城
Explore historic castle ruins, a unique sea moat, and a top cherry blossom park.
What it is
- A former Japanese castle in Omura City, Nagasaki Prefecture.
- Built on a peninsula extending into Omura Bay.
- The castle site is now Omura Park.
- Honmaru site is now the grounds of Omura Shrine.
What to see
- Stone walls of Honmaru and the southern moat still exist.
- A unique submerged moat built in the shallow sea to the north.
- The Itajiki Yagura was restored in wood in 1992.
- Omura Park is one of Japan's Top 100 Cherry Blossom Spots.
When to go
- Spring for cherry blossoms in Omura Park.
05
Shimabara Castle
NAGASAKI · CASTLE 島原城
This castle, a 1964 reproduction, offers a museum about Christian history and views of the sea.
What it is
- Reproduction of a grand castle, completed in 1964.
- Original castle built from 1616 to 1625.
- Contains a museum about local history and Christianity.
What to see
- Museum exhibits on Christianity on the second floor.
- English panels explain Christian history in Shimabara.
- Fumi-e ritual manual, picture tablets, and registers.
- Samurai armor of the Matsudaira family on the third floor.
- Views of the sea and mountains from the roof.
- Bird's-eye view of the castle's turrets, walls, and moat.
- Official site
- shimabarajou.com
06
Ishida Castle
NAGASAKI · CASTLE 石田城
Explore the ruins of a unique sea castle, a historic site with a beautiful garden.
What it is
- A Japanese castle in Nagasaki Prefecture.
- Also known as Fukue Castle.
- Completed in 1863, it was the Goto clan's residence.
- One of the Continued Top 100 Japanese Castles.
What to see
- The castle ruins are a designated historic site.
- The castle was a sea castle surrounded by the sea.
- See the existing back gate, Kedashimon.
- Parts of the earthen wall and stone bridge still exist.
- The Goto Clan Garden is a national scenic spot.
- The garden was built as a retirement residence.
07
Hirado Castle
NAGASAKI · CASTLE 平戸城
Hirado Castle offers reconstructed Edo-period architecture and scenic views of Hirado Port.
What it is
- A Japanese castle in Hirado City, Nagasaki Prefecture.
- Residence of the Matsura clan during the Edo period.
- First built in the late Azuchi-Momoyama period.
- Rebuilt in 1704, following military science of Yamaga Soko.
What to see
- Reconstructed castle keep and other structures built in 1962.
- Castle ruins include Kameoka Shrine and Kameoka Park.
- Kaishu Yagura, renovated into an accommodation facility.
- Views overlooking Hirado Port from the castle hill.
- Official site
- hirado-castle.jp
08
Hinoe Castle
NAGASAKI · CASTLE 日野江城
Hinoe Castle is a historic Japanese castle ruin, offering a glimpse into medieval samurai life.
What it is
- A Japanese castle, also known as Hinoe-jo.
- Built by Fujiwara Tsuneyasu between 1213 and 1219.
- Ruled by the Arima clan for 400 years.
- A national historic site.
What to see
- Located on a small hill near the Arima River estuary.
- Castle layout is a renkaku-shiki hirayamajiro.
- Stone walls and dry moats are still visible.
- Excavations found straight stairs and stone structures.
- Gold-leafed tiles were also excavated.
09
Kaneishi Castle
NAGASAKI · CASTLE 金石城
Kaneishi Castle, a former So family residence, is worth visiting for its restored garden and historical significance.
What it is
- Main residence of the So family, daimyo lords of Tsushima.
- Established in 1528.
- Became a castle with walls and watchtowers in the 1660s.
- Used as a secondary residence after 1678.
What to see
- Original castle walls.
- Reconstructed main gate.
- Reconstructed watchtower.
- Restored garden with a pond shaped like the character kokoro.
- Tsushima Museum is on the site.
10
Katsumoto Castle
NAGASAKI · CASTLE 勝本城
Katsumoto Castle was a short-lived fortress built for Toyotomi Hideyoshi's invasion of Korea.
What it is
- Hilltop castle built for warlord Toyotomi Hideyoshi.
- Intended for invasion of Korean Peninsula.
- Built in four months in 1591.
- Decommissioned in early 1600s as gesture of peace.
What to see
- Castle entrance.
- Some ramparts that surrounded the main keep.
- Ramparts largely intact except for corners.
- View over the village and port of Katsumoto.