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About Shimane

Diving in Shimane Prefecture offers a unique opportunity to explore the underwater treasures of the Sea of Japan along its scenic coastlines and around the beautiful Oki Islands. While Shimane may not be as widely recognized for diving as some other coastal regions in Japan, it still presents captivating dive sites waiting to be explored.

The prefecture's proximity to the Sea of Japan provides divers with access to diverse marine ecosystems characterized by rocky reefs, vibrant kelp forests, and an abundance of marine life. From colorful fish to fascinating invertebrates, Shimane's underwater world promises an unforgettable diving experience.

While diving infrastructure in Shimane may be less developed compared to other coastal regions, there are still opportunities for diving enthusiasts to embark on underwater adventures. Local dive operators and shops offer guided excursions to notable dive sites, providing equipment rental and expert guidance to ensure a safe and enjoyable experience for divers of all levels.

One of the highlights of diving in Shimane is the opportunity to explore the waters around the Oki Islands. These remote and pristine islands boast clear waters and rich marine biodiversity, making them an ideal destination for diving enthusiasts seeking tranquility and natural beauty beneath the waves.

Whether you're a seasoned diver looking for new challenges or a beginner eager to discover the wonders of the underwater world, Shimane's dive sites offer something for everyone. So pack your gear, immerse yourself in the crystal-clear waters of the Sea of Japan, and embark on a diving adventure you'll never forget in Shimane Prefecture.

Local Areas

Shimane Area Map

Areas in Shimane

Shimane Ota

Enjoy the change of ocean season

City of Ota of Shimane prefecture, The Iwami Ginzan silver mine was designated as  a World Heritage Site based on its influence on exchanges between East and West, as historic remains of silver production, and as a cultural landscape in harmony with nature. The diving area is situated next to this  World Heritage Site.

What you can see

All year round:
-Variety of nudibranch
-Variety of Shrimps and Crabs
-Variety of Macro marine life

Winter to Spring seasons:
-Variety of nudibranch

Summer season:
-Longtooth grouper (Epinephelus bruneus)

Autumn season:
-Large school of tropical fish arriving from the South

Oki Okinoshima Island

Located among the Oki Islands  40-80km off the coast of Shimane prefecture, Okinoshima is a popular from the diversity of natural life in this region. As a geopark, many visit to enjoy the Eco tours and marine activities here. Underwater, you can enjoy wreck diving, cave diving and fish watching. There is a large jaw fish colony and also a cave with resting Japanese Banded houndsharks(Triakis scyllium).