Kamo Aquarium is located on the west coast of Tsuruoka City in Yamagata Prefecture and is famous for exhibiting the largest number of jellyfish in the world. It is a well-equipped diving spot with a free large parking lot and hygienic flush toilets. With a maximum depth of 12m and average depth of 8-10m, the area is not easily affected by waves or currents, and there are many dive sites that even beginner divers can enjoy.

Four naturally created reef islands, large and small, with a basic entry of Jetty Dive, a rare dive in Japan that is neither beach nor boat. The dive area is around Ruzaoan Island, also known as Yotsushima, the four islands. It takes 5 minutes by ferry, and the harbor is equipped with a parking lot, water supply and flush toilets. There is a wide range of life in the water and many schools of fish can be seen.

The diving pool attached to the store is a true diving pool designed exclusively for diving training. A large circulation clean system operates 24 hours a day to keep the water hygienic and clear. Water quality is also controlled by human hands to maintain clean water quality at all times. Shower rooms are adjacent and locker rooms are available free of charge.

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.

About an hour from Sendai, you can dive into the waterfall basin of Akiu Ootaki, one of Japan’s three largest waterfalls, which is one of the rarest waterfall dives in the world. Diving under a waterfall with a drop of 55 meters.

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.

The town of Onagawa, on the Sanriku coast of Miyagi Prefecture, is designated as a national park. The tsunami severely damaged the area, but it is now recovering strongly. There is a fishing area off Jinghwasan where the Oyashio and Kuroshio currents collide, and both cold and warm currents occur at the dive site. It is also interesting to enjoy diving with fixed nets, oysters, and sea squirt shelves.

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.

The Okinose W-Arch is situated on the Etchu-Miyazaki Coast, at the easternmost tip of Toyama Prefecture. Located approximately 1 kilometer offshore, it faces the open ocean. The water remains clear from spring through summer, although occasional strong currents can be encountered. The water depth here is about 15 meters, and the presence of two arches side by side is an exceedingly rare occurrence on the Sea of Japan side. According to local legend, an ancient shrine once stood in this area, making it known as a power spot. Visiting this site is highly recommended.

The town of Usushiri in Hakodate City, Hokkaido, is an ocean with an excellent ecological balance and biodiversity. The water temperature drops to 2 degrees Celsius at its lowest point, but rises to 21 degrees Celsius in the summer, making it a great place to dive all year round.