About Saga

Diving in Saga Prefecture offers a unique opportunity to explore the diverse marine ecosystems along its picturesque coastline, which borders both the Sea of Japan and the Ariake Sea. Located in the northwest part of the island of Kyushu, Saga's coastal waters boast a wealth of underwater treasures waiting to be discovered.

With its strategic location next to the Genkai Sea and the Tsushima Strait to the north, Saga Prefecture's coastline is home to a variety of dive sites characterized by rocky reefs, sandy bottoms, and clear waters. Divers can expect to encounter a rich diversity of marine life, including colorful fish, crustaceans, and other fascinating creatures endemic to the region.

Despite being known for its forests, which cover over 68% of the total land area, Saga's coastal waters are teeming with biodiversity, making it a paradise for diving enthusiasts. Whether you're exploring underwater caves, observing marine life in rocky formations, or simply enjoying the tranquility of the underwater world, Saga's dive sites offer something for divers of all interests and skill levels.

While diving infrastructure in Saga may be less developed compared to other coastal regions, there are opportunities for guided diving excursions and equipment rental for those interested in exploring the region's underwater treasures. Local dive operators can provide insights into the best dive sites and assist divers in enjoying a safe and memorable diving experience.

Whether you're a beginner looking to take your first dive or an experienced enthusiast seeking new underwater adventures, diving in Saga Prefecture promises an unforgettable journey into the heart of Japan's underwater world. So pack your gear, dive into the crystal-clear waters off Saga's coastline, and immerse yourself in the natural wonders waiting beneath the surface.

Local Areas

Saga Area Map

Areas in Saga


The Ocean with four seasons

Due to the large difference in water temperature during the year, you can say that, when you dive at Karatsu, you can feel the change of seasons. Also due to the weather situations such as violent current, there has been many ship wrecks off the shores. The cargo was mainly porcelain and china's, so if your lucky,  you may come across a lost treasure from the past during you dive. You can also enjoy the famous "nanatsugama" rock formation. This rock formation is designated as a national treasure.

What you can see

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

During the Spring season:
-Lethotremus awae

During the Summer to Autumn seasons:
-Red-belted anthias(Pseudanthias rubrizonatus)

During the Winter season:
-Whitegirdled goby(Pterogobius zonoleucus)