Imabari Castle

Imabari Castle is one of only three sea castles (umijiro) in Japan, built directly on the coast by the legendary castle architect Todo Takatora in 1602. The castle's most distinctive feature is its moat, which is filled with seawater drawn from the Seto Inland Sea, where visitors can spot fish, rays, and even small sharks swimming beneath the stone walls. The reconstructed five-story keep houses a museum with exhibits on the castle's history, samurai armor, and Imabari's role in maritime trade. From the top floor observation deck, panoramic views extend across the Seto Inland Sea to the islands of the Shimanami Kaido. The castle grounds also feature the Fukiage Shrine and several turrets that can be explored as part of the admission.