Kokuhei Taisha Ichinomiya (Iyo Province)

Oyamazumi Shrine

大山祇神社

/ Ōyamazumi Jinja

Admission
Free (treasure hall ¥1,000)
Goshuin (Temple Seal)
¥300
Access
See details
Hours
Sunrise–17:00 (treasure hall 8:30–17:00)

Overview

On Omishima Island in the Seto Inland Sea, this shrine holds the single largest collection of National Treasure-designated arms and armor in Japan — approximately 40% of the nation's total. Warriors from across Japanese history, including Minamoto no Yoshitsune and Toyotomi Hideyoshi, dedicated their weapons here after battle. The island is now a popular stop on the famous Shimanami Kaido cycling route. Ancient camphor trees, some over 2,600 years old, tower over the grounds.

History

1322📄Documented

Kono clan, rulers of Iyo Province, rebuilt the shrine and dedicated weapons.

Enshrined Deities

primary Deity

God of mountains, the sea, and warfare; one of the greatest earthly deities

Blessings

Shrine Network

Did You Know?

💡

The shrine holds approximately 40% of all National Treasure and Important Cultural Property-designated weapons and armor in Japan.

Source: documented

💡

A camphor tree in the grounds is estimated to be over 2,600 years old.

Source: documented

Practical Information

Location Coordinates

34.2472, 133.0072

Physical Address

3327 Miyaura, Omishima-cho, Imabari, Ehime 794-1304

〒794-1304 愛媛県今治市大三島町宮浦3327

Access

Imabari Station (JR Yosan Line)

Hours

Sunrise–17:00 (treasure hall 8:30–17:00)

Visitor information last verified: 2026-04-06. Please check the official website for the latest details.

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Frequently Asked Questions

Information provided by Jinja DB Editorial Team

What is Oyamazumi Shrine?

On Omishima Island in the Seto Inland Sea, this shrine holds the single largest collection of National Treasure-designated arms and armor in Japan — approximately 40% of the nation's total. Warriors from across Japanese history, including Minamoto no Yoshitsune and Toyotomi Hideyoshi, dedicated their weapons here after battle. The island is now a popular stop on the famous Shimanami Kaido cycling route. Ancient camphor trees, some over 2,600 years old, tower over the grounds.

Where is Oyamazumi Shrine located?

Oyamazumi Shrine is located in Imabari, Ehime. The full address is: 3327 Miyaura, Omishima-cho, Imabari, Ehime 794-1304.

What deities are enshrined at Oyamazumi Shrine?

The enshrined deities are: Oyamazumi no Kami.

What blessings can you pray for at Oyamazumi Shrine?

Oyamazumi Shrine is known for: Maritime Safety, Mountain Safety, Victory, General Prosperity.

How do I get to Oyamazumi Shrine?

The nearest station is Imabari Station (JR Yosan Line). Bus from Imabari Station to Omishima, ~60 min; also accessible via Shimanami Kaido cycling route