Imabari Castle

Imabari Castle in Imabari City, Ehime Prefecture, is a flatland castle built by the master castle-builder Todo Takatora. Known as a sea castle that drew seawater from the Seto Inland Sea into its moat, it is counted as one of Japan's three great water castles. It is an unusual castle whose moat fills with seawater and where sea fish swim, and the white keep and stone walls seen across the moat present a castle scene unique to the Seto Inland Sea. As a symbol of Imabari, a major towel-producing area, it draws many visitors.

Highlights: A Masterpiece by Master Builder Todo Takatora

Todo Takatora, who built Imabari Castle, is known as a master castle-builder responsible for many famous castles. On this site facing the Seto Inland Sea, he built an innovative castle that made the most of the sea. The moat, into which seawater was drawn, was excellent for defense and is said to have also served as a harbor. The layout, skillfully arranging high stone walls and a wide moat, represents the essence of Takatora's castle-building technique and greatly influenced later Japanese castle construction. United with the sea, Imabari Castle was a castle full of functional beauty, serving the dual roles of war preparation and a base for water transport. The current keep was rebuilt in the Showa era, but remains such as the stone walls, moat, and the Kurogane-gomon gate preserve the appearance of that time in good condition.

Scenery Unique to a Sea Castle

Imabari Castle's greatest feature is, above all, its seawater-filled moat. The water level changes with the tides, and sea fish swim in the moat, an unusual sight not seen at inland castles. The rebuilt white keep is reflected on the moat's surface and, together with the stone walls, presents a beautiful figure. From the top floor of the keep, you can take in the townscape of Imabari, the Seto Inland Sea, and the bridges of the Shimanami Kaido, enjoying the same Seto view that Todo Takatora likely surveyed. Exhibits inside the castle introduce arms and local history, letting you learn about the castle's history and Imabari's culture.

Seasonal Enjoyment

The castle can be visited year-round. Spring, when the cherry blossoms bloom, is especially popular for the harmony of keep and blossoms. The sight of moatside cherry blossoms reflected on the water is exceptional. From clear-aired autumn into winter, the Seto view from the keep stands out even more. At summer dusk, the sunset reflected on the moat and the silhouette of the keep are beautiful, and visiting at different times reveals different expressions.

Access and Basic Information

About 15 minutes on foot from JR Imabari Station on the Yosan Line, or a few minutes by city bus or taxi. It is accessible by limited express train from the Matsuyama area, and can also be reached by car from the Honshu side across the Shimanami Kaido. The hours and admission for the keep and other facilities may change, so confirm official information before visiting. Imabari is known as a major towel-producing area, with abundant towel-related facilities and shops serving Seto Inland Sea seafood.

Practical Travel Notes

• The grounds have stone steps and slopes, and the keep is mainly navigated by stairs. Visit in comfortable walking shoes.
• Combining a visit with Imabari, the starting point of Shimanami Kaido cycling, lets you enjoy both the sea castle and the sea route in one day.
• Stopping by Imabari Towel flagship stores and the museum lets you choose fine towels as souvenirs.
• Sea fish swimming in the moat are a sight unique to Imabari Castle. The look changes with the tides, so allow time to observe.

One Piece of Advice

Imabari Castle has an appeal different from other castles as a rare water castle united with the sea. Beyond the view from the keep, turning your eyes to the sea fish swimming in the moat and the water surface changing with the tides reveals the special charm of this castle. Combine it with the Shimanami Kaido and Imabari as a towel town to enjoy travel that feels distinctly of the Seto Inland Sea.

📚 Sources

The information here is based mainly on the public guidance from Imabari city and its tourism division. The information for the exhibits inside the castle and the Kurogane Gate, and on-site information boards, are also useful references. Because the hours and admission for the keep and other facilities may change, please confirm the latest details on the official Imabari Castle or Imabari city information before you visit.

Visitor Checklist

• Estimated time needed: About 1 to 1.5 hours to tour the keep and grounds; allow a little more to slowly watch the fish in the moat and the changing tides.
• What to bring: Comfortable shoes, as the grounds have stone steps and slopes and the keep is mostly stairs. Cash is handy for admission and for buying Imabari towels.
• Suggested route: View the seawater-fed moat and the white keep, tour the Kurogane Gate and stone walls, and take in the Seto Inland Sea and Shimanami Kaido from the top floor. It combines well with Imabari, the starting point of Shimanami Kaido cycling.