Oyamazumi Shrine

Oyamazumi Shrine stands on Omishima Island in the Seto Inland Sea, part of Ehime Prefecture in Japan. Established over 1,300 years ago, this ancient Shinto shrine has served as the head shrine for approximately 10,000 shrines dedicated to Oyamazumi-no-Mikoto, the deity of mountains and seas. According to tradition, the shrine was founded by Otoshi-no-Mikoto, who enshrined his ancestral deity on this island, making it one of Japan's most historically significant religious sites.

The shrine holds extraordinary cultural importance as home to Japan's largest collection of samurai armor and weaponry. Its treasure hall displays national treasures and important cultural properties that represent approximately 80 percent of all such designated arms and armor in Japan. Warriors throughout history, including prominent figures like Minamoto no Yoshitsune and military commanders from the Heike and Genji clans, dedicated their weapons here seeking protection and victory in battle. The collection includes swords, helmets, and complete armor sets spanning several centuries of Japanese military history.

Visitors experience the shrine's sacred atmosphere while walking through its expansive grounds, which feature ancient camphor trees estimated to be over 2,600 years old. The main hall, constructed in traditional architectural style, stands as a testament to Japanese craftsmanship and religious dedication. The treasure museum allows close examination of the remarkable armor collection, offering insight into samurai culture and Japanese metalworking techniques. The surrounding island provides scenic coastal views and opportunities to explore rural Japanese island life.

Omishima Island connects to the main islands via the Shimanami Kaido, a series of bridges linking Honshu and Shikoku that accommodates both vehicles and cyclists. From Imabari city on Shikoku, visitors can take a bus directly to the shrine, with the journey taking approximately 50 minutes. Cyclists traveling the Shimanami Kaido cycling route will find the shrine conveniently located near the route.