East Nagasaki · ShimabaraNo.1231★★Open in map →
Shimabara Castle
A castle in the middle of Shimabara city, on a ridge between a volcano and the sea. The white keep holds the town's museums; the tall stone walls and the water moat below it are what the lord's tenants were taxed to build.
- FromIsahaya Station
- ~1 h 20 minShimabara Railway, about hourly
- Get off atShimabara Station (Shimabara Railway)
- On foot
- Shimabara Castle
The sweet spot
This is a well-signed, ticketed castle in the middle of a small city, not a forgotten ruin. What is easy to miss is that most visitors only do the inside. The moat circuit is a public street, free and open at any hour, and that circuit is where the Edo-period work actually survives.
Where it is
20 more notes in Nagasaki · open the map →What to look for — in walking order
- The moat patha public street running right around the water moat, free and walkable at any hour
- The folding wallsEdo-period stonework that zigzags so defenders could fire along its face
- The keepa five-tiered reconstruction holding the castle's main exhibits
- Tatsumi turretthe south-east turret, now a gallery for a sculptor born in the town
- Ushitora turretthe north-east turret, filled with old household and farming tools
How to actually get there
- Isahaya Station → Shimabara Station (Shimabara Railway, about 1 h 10 min, 1,750 yen).
- Shimabara Station → the east entrance of the castle grounds (walk, flat, about 10 min).
- Walk the moat circuit first, then cross into the main bailey for the keep and the two turret museums.
- Return on the same line, checking the last departure before you set out.
- Shimabara Railway from Isahaya
- Isahaya is where the JR lines from Nagasaki and Hakata meet the Shimabara Railway. The local line runs down the east coast of the peninsula and Shimabara Station is near the far end. The ride takes about an hour and ten minutes and the fare is 1,750 yen. Midday departures are roughly hourly.
- Last train back to Isahaya
- Trains return on the same line, but a rural timetable finishes early: on the weekday diagram the last through service to Isahaya leaves Shimabara just before nine in the evening. Settle your return before you start walking, because once it has gone there is no later train.
About the place
Shimabara Castle stands on a low ridge between the Unzen volcano and the Ariake Sea. The plan is a long rectangle, with the main bailey, second bailey and third bailey set one behind the other from south to north. Its defining feature is the stonework, which folds back and forth like a standing screen so that anyone approaching can be fired on from the side as well as the front. Three three-storey turrets stand on the walls around the keep. The walls and the water moat are the Edo-period fabric; everything above them was put back in the twentieth century.
How to enjoy it
The exhibits keep daytime hours, so start inside and leave the moat circuit for whenever suits — it is a public street either way. From Shimabara Station the walk is about ten minutes and flat the whole way. One hall inside the grounds is given over to the Unzen eruption and the recovery that followed, which is worth the extra time if you are heading up the mountain next.
Background & history
Matsukura Shigemasa began the castle in 1618 and its main parts were in place by about 1625 — one of the very few new castles the Tokugawa shogunate permitted after it closed the door on new construction. Paying for it, along with military levies and a hard campaign against Christians, pushed the farmers of Shimabara and Amakusa into revolt in 1637. The buildings were pulled down in 1876. The keep was put back in 1964, and the site was designated a national historic site in 2025.
Before you go
- Cash
- The keep and the turret museums are covered by one ticket, 700 yen for an adult when checked, bought at the gate. Walking the moat circuit outside the walls costs nothing. The car park inside the grounds is paid.
- Before you go
- The exhibits keep daytime hours only. The walls and the moat are outdoors and exposed, with no shelter on the circuit if it rains. The peninsula sits under an active volcano, so check local notices before building this into a longer route up into the hills.
- Another way
- From Kumamoto the approach is by sea: ferries cross the bay to Shimabara Port, and the railway runs up into the town from there. The railway company also operates a direct bus between the peninsula and Nagasaki Airport.
- After you get off
- From Shimabara Station head west, away from the sea. The moat comes into view within a few minutes; follow it round to the entrance on the east side of the grounds.