This museum is shipshape, literally. From the outside it looms like an ocean liner by the water’s edge, and inside are four floors of excellent displays related to every aspect of ships; don’t miss the stunningly crafted replicas of Japanese ships, and try the navigation simulator. Outside, the 83.7m ice-breaker Sōya is preserved. The museum is full of activities for kids, including a pool next door used for swimming and demonstrations and instruction of small craft. There’s limited English signage, but an English audio guide is available (¥500).