Maritime Self-Defense Force Museum

Maritime Self-Defense Force Museum (海上自衛隊 佐世保史料館) in Sasebo is a must-visit for anyone curious about Japan’s naval heritage. The highlight is the real decommissioned submarine on display, allowing visitors to get an up-close look at life beneath the sea. Inside the museum, exhibits cover the history of the Maritime Self-Defense Force and Sasebo’s role as a major naval port, offering a unique glimpse into Japan’s modern maritime defense.

Located near the port, this free museum is great for families, military enthusiasts, and curious travelers alike. It’s informative yet easy to explore, with interactive displays and models that bring the exhibits to life. Whether you're stepping inside a submarine or admiring ships from the observation area, the museum offers an engaging and educational experience that blends history with hands-on discovery.