This is the border between Toyama and Niigata prefectures. The Oshirachi Beach is a cliff facing the open ocean, and the clarity is good, sometimes exceeding 20 meters from June to September. There are many large roots and rocks in the water, as well as arches and crevasses to enjoy the terrain.

This site is beach entry only. Enter from the gravel beach, and as you descended, the Gorota stones spread out. Once off the coast, it becomes a sandy area, which has several man-made towers of sorts. The water near the entry is shallow but gradually deepens as you go offshore to a depth of over 40 meters.

Noto Island is located in the bay of the Noto Peninsula in Ishikawa Prefecture. The island itself can be reached by land via a bridge. There are 6 points for boat diving. With or without a C-card, you can go snorkeling and skin diving with the dolphins.

Fushiki-Kokubu in Takaoka, Toyama, is a shallow beach-entry site (max 5m) in Kokubu Seaside Park. Marine life thrives around offshore wave blocks, with seasonal highlights from nudibranchs to spawning cuttlefish, turtles, schooling fish, and dungeness. Great for both beginners and experts year-round.

Banjin Beach in Kashiwazaki, faces the Sea of Japan and offers calm conditions with diverse underwater scenery. With a max depth of 10m and beach entry, it’s great for all levels. Sandy, rocky areas and seaweed forests host seahorses, nudibranchs, dungeness corals, jellyfish and schools of horse mackerel.

Ryuoh-do Cave on Sado Island’s Ogi Peninsula is a large sea cave nicknamed the “Blue Cave” for its clear waters and glowing blue light. Popular for diving and sea kayaking, it hosts sea slugs, seahorses, and more, offering a magical experience for beginners to intermediate divers.

Ogi Port in southern Sado Island offers rich marine life and dynamic terrain. At the “Happy Jizo” point, a Jizo statue rests at 23m, where divers leave coins for safety prayers. With drop-offs and reef zones, it’s a favorite for topography enthusiasts.

Sado Island is the second-largest island in terms of area after the main island of Okinawa, and can be reached by ferry from Niigata Port in about 2.5 hours or by jetfoil in about 1 hour. In the summer, the sea is very calm and clear, and the water temperature is warm, making it very popular with divers.

Sado Island is the second largest island in terms of area after the main island of Okinawa, and can be reached by ferry from Niigata Port in about 2.5 hours or by jetfoil in about 1 hour. In the summer, the sea is very calm and clear, and the water temperature is high, making it very popular with divers.

This is one of Japan’s three major clear streams and has a high level of clarity. The water depth is often 3-6 meters, but in some places it can be over 10 meters in depth.