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Kasaoka Islands: Enjoying Dinosaur Island, Horseshoe Crab Village, and Seto Inland Sea Multi-Island Beauty

🍑 Okayama|May 14, 2026

Kasaoka Islands: Enjoying Dinosaur Island, Horseshoe Crab Village, and Seto Inland Sea Multi-Island Beauty

"Kasaoka Islands" spreading offshore from Kasaoka City, Okayama are an archipelago of 31 islands floating in the Seto Inland Sea. Island tourism is enjoyable, with each island having its own unique culture, nature, and industry amid the multi-island beauty of the Seto Inland Sea.

Manabe Island: Island Where Edo-Period Fishing Village Remains

The largest Kasaoka Island, "Manabe Island," is also known as a filming location for the movie "20th Century Boys," retaining unchanged fishing village scenery from the Edo period. Also famous as "the island of cats" with many resident cats, island exploration encounters cats everywhere.

Kitagi Island: Stone Island and Horseshoe Crab Conservation

"Kitagi Island" has long flourished in granite quarrying as a "stone island." Kitagi Island stone has been used in many structures including the stonework of Tokyo Station and the torii gate of Yasukuni Shrine. Also, Kasaoka Bay is known as a horseshoe crab breeding ground with conservation activities underway.

Kasaoka Kamogata Figs and Gourmet

The Seto Inland Sea coast including Kasaoka City also has active agriculture utilizing the warm climate, with Kamogata-grown figs as a specialty product. Fresh Seto Inland Sea seafood can also be enjoyed.

Access

Taxi or on foot from JR Sanyo Main Line Kasaoka Station to Kasaoka Port. About 20-60 minutes from Kasaoka Port to each island by city ferry.

📍 Location & Access

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