
Guida
Tsunoshima is an island located in Hokuhei-cho, Shimonoseki City, Yamaguchi Prefecture, floating in the Sea of Japan (Hibiki-nada Sea). The name comes from its shape, which resembles a bull's horn. The most striking feature is the Tsunoshima Bridge, completed in 2000, which spans 1,780 meters. As one of the longest roads built to connect an offshore island, it offers a spectacular contrast between the emerald green sea and the deep blue sky. The area is part of the Hokunagato Kaigan Quasi-National Park, ensuring a beautifully preserved natural environment.
The island has a long history of human settlement. Its name appears in the Man'oshu (ancient Japanese poetry), and historical records from the Engi era mention the tribute of seaweed from Nagato Province. In modern history, the island served as part of the Shimonoseki Fortress area. In the eastern part of the island, the Tsunoshima Battery was established. Construction of this battery began in 1939, and it was once equipped with four Type 94 15cm cannons. Today, the remains of the battery and ammunition depots serve as historical sites that tell the story of Japan's former coastal defense systems.

The symbol of Tsunoshima is the Tsunoshima Lighthouse, standing at Yumegasaki in the northwest of the island. Designed by British engineer Richard Henry Brunton, the same man responsible for many famous Japanese lighthouses, it was the first Western-style lighthouse on the Sea of Japan, lit in 1876. Standing 43 meters tall, it is a first-class lighthouse equipped with a massive Fresnel lens. The Tsunoshima Bridge is also a major highlight, offering one of the most famous driving routes in Japan with breathtaking views from the car. Additionally, the nearby coastal battery ruins and ammunition depots provide a fascinating glimpse into military history.
Tsunoshima can be visited year-round, but it is highly recommended to visit on clear, sunny days during the daytime to see the sea at its most vibrant. The emerald green color of the water is most vivid when the sun reflects directly off the surface. The period from March to September is ideal, as the warm weather highlights the contrast between the blue sky and the sea. Sunset is also a magical time, as the changing colors of the sky create beautiful silhouettes of the lighthouse and the bridge.

The primary activities in Tsunoshima are scenic driving and landscape photography. Since the island is best accessed via the bridge, a car is essential. For a taste of local life, visit the "Shiokaze no Sato Tsunoshima" (Tsunoshima Fishery Direct Sales Center). Here, you can purchase fresh local seafood and traditional seaweed products. For history enthusiasts, walking through the remains of the coastal batteries and observing the lighthouse structure offers a unique cultural experience.
Tsunoshima is situated at the northwestern edge of Yamaguchi Prefecture, surrounded by the rich natural beauty of the Hokunagato Kaigan Quasi-National Park. It is common to combine a visit to Tsunoshima with other sightseeing spots in Shimonoseki or the coastal routes of the Nagato area. The entire area is well-maintained for driving tours and nature lovers.

As Tsunoshima is centered around natural outdoor environments, comfortable walking shoes and clothing are highly recommended. Be mindful of the terrain when walking near the lighthouse or battery ruins. Most visitors travel by car, so please ensure your vehicle is ready for a drive. While some local shops may have limited English, most signs and information are accessible via photos or maps. Please respect the local environment by taking your trash with you and following all local rules to preserve the natural beauty of the area.