Guida
Geiyo Fortress Kojima is a former military site located on Kojima Island in Imari City, Ehime Prefecture. It was constructed during the Russo-Japanese War era to prepare for potential attacks by the Russian fleet. Today, the site offers a quiet and contemplative atmosphere where visitors can explore historical remains such as artillery positions, observation towers, and red-brick underground bunkers that have become part of the natural landscape. Surrounded by the tranquil waters of the Seto Inland Sea, this spot allows you to experience the intersection of military history and natural beauty.
The history of this site dates back to the Russo-Japanese War. As part of a coastal defense system designed to guard against the Russian fleet, Kojima was equipped with significant military installations. Historical records suggest that during this period, heavy artillery was moved between coastal fortresses across Japan; specifically, out of six 28cm guns sent from Kojima, two were reportedly used in the defense of Port Arthur. This background highlights the island's significant role in Japan's modern military history.
The island is dotted with various structures that tell the story of its former military functions. Notable features include the remains of artillery positions, observation towers, and underground bunkers built with traditional red bricks. These structures serve as tangible evidence of the engineering and military design philosophies of the era. A well-maintained walking path connects these historical points, allowing for a pleasant stroll through the island's various landmarks.
While the fortress area is accessible 24 hours a day, it is highly recommended to visit during daylight hours for safety and visibility. A clear, sunny day is ideal for fully appreciating the combination of the historic ruins and the calm, blue waters of the Seto Inland Sea. The environment is suitable for exploration in almost any season, provided you have daylight.
The primary activity here is 'historical exploration.' Walking through the artillery positions and underground bunkers provides a unique educational experience regarding the structure of past defense bases. Additionally, near Kojima Port, you can find a full-scale replica created for the filming of the NHK Special Drama 'Saka no Ue no Kumo' (Clouds Above the Hill), offering a chance to connect with the world of Japanese historical drama.
Kojima is located approximately 10 minutes by boat from Hatohama Port. The island is part of the scenic Shimanami Kaido route, making it an excellent addition to a cycling or boat-based journey through the many islands of the Seto Inland Sea. It is a perfect stop for travelers looking to explore the fusion of history and nature in this region.
As you will be walking through natural terrain and historical sites, please wear sturdy, comfortable walking shoes, as some paths may be uneven or unpaved. Since there are limited facilities or shops on the island, it is advisable to bring your own water and snacks. Please respect the historical integrity of the ruins and follow local etiquette to ensure these sites are preserved for future generations.