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About Toyama

Diving in Toyama Prefecture offers an exceptional opportunity to explore the diverse marine ecosystems along its picturesque coastline, complementing the region's stunning mountain landscapes and rich cultural heritage. Despite being renowned for its majestic mountains and traditional wooden buildings, Toyama Prefecture's coastal waters are also a hidden gem for diving enthusiasts.

With 30% of the prefecture's area designated as national parks, including Chūbu-Sangaku National Park and Noto Hantō Quasi-National Park, Toyama offers a pristine natural environment that extends beneath the waves. Divers can explore a variety of underwater habitats, from rocky reefs to sandy bottoms, each teeming with vibrant marine life.

Toyama's coastal waters are rich in marine biodiversity, thanks to the nutrient-rich currents flowing from the Sea of Japan. Divers can expect to encounter a wide array of marine species, including colorful fish, crustaceans, and other fascinating creatures. From graceful sea turtles to elusive octopuses, the underwater world of Toyama Prefecture offers surprises at every turn.

While diving infrastructure in Toyama 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 of all levels 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 Toyama Prefecture promises an unforgettable journey into the heart of Japan's underwater world. So pack your gear, dive into the crystal-clear waters of Toyama's coastline, and immerse yourself in the natural wonders waiting beneath the surface.

Local Areas

Toyama Area Map

Areas in Toyama


Enjoy the unique geography of Namerikawa with the height of 3000m Tateyama Mountain Range to the depth of 1400m Toyama bay

From its unique landscape, Namerikawa area has an upwelling current from the deep waters. This upwelling currents brings in the rare deep water creatures to the diving spots, especially from January to mid-summer months.

If you’re a night diver with a camera, you might encounter and take photographs of critters rarely seen anywhere around the world. If you can find a local guide, this beach diving site is open to you 24hours 365days.

Namerikawa is said to be the "Mecca" for finding rare deep creatures in Japan.
During the month of April and May, Namerikawa is visited by the Liparis tessellatus aka. Snail fish (Japanese "Bikunin") from the depth of 249-346 m.  This creature is very popular among the Japanese divers not just because of its rarity but its lovable appearance. Growing only up to 16cm, its gray soft skin and its big comical moving eyes is a sight to see. This is the only place in Japan and maybe even in the world, that you can see this rare creature during recreational scuba diving.

Also Watasenia scintillans aka. Firefly squid, sparkling enope squid (Japanese "Hotaruika") can be seen during April, when they come up from the deep to lay their eggs in the shallow waters. Sometimes, due to the tides, the firefly squids are washed onshore, making the beach light up in florescent blue, which the locals call it "Mysterious Lights of Firefly Squid". This phenomenon occurs randomly and you are considered lucky, if you can see it during your visit.

Lebbeus balssi aka. Broken-back Shrimp (Japanese "Barusui aramo shrimp"), often referred to as a "Queen of the Shrimp world” in Japan, for its beautiful appearance is another idol you want to challenge. This shrimp is normally found in waters deeper than 55m but are found in depths around 22m around these waters. A big bonus for visiting divers.

There are also the super macro angels between the seaweeds.
Aptocyclus ventricosus aka. Smooth lump sucker (Japanese "Hoteiuo"), Lethotremus awae aka. Japanese "Dangouo", Liparis punctatus aka. Japanese "Sunabikunin".
These babies are all 1-2mm in size, but if you’re an underwater photographer with the right lens, you can catch the beautiful patterns of colors on these tiny angels. It will be an experience you will never forget.

What you can see

All year round:
-Variety of nudibranch
-Variety of Shrinps and Crabs
-Variety of Macro marine life
-Cocktail shrimp(‎Trachysalambria curvirostris )
If you are lucky:
-balsu-ibaramo-ebi (Lebbeus balssi)
-Red bat fish(Halieutaena stellata)

February to May:
-‎Spear squid(Heterololigo bleekeri)
 If your lucky:
 Many luminescent firefly squid (Watasenia scintillans) washes ashore.

January to Mid summer:
-Devil searobin(Lepidotrigla kishinouyei)
-Lethotremus awae
-Smooth lumpsucker(Aptocyclus ventricosus)      *January-February
-North Pacific Giant Octopus (Enteroctopus dofleini)
-School of  horse mackerel(Trachurus japonicus )
-School of  barracuda(Sphyraenidae)
-School of Japanese butterfish(Hyperoglyphe japonica)

Shops in the area


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Fushikikokubu Kaigan

A beach point with only 5m maximum depth, this spot is popular among the nudibranch fans in this area. The best seasons are from November to June when the water temperature drops. You can also enjoy the summer season as there are seahorses in this area as well.