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.

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.

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.

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.

About 10km south of Echizen, Minami Echizen is a diving area that has opened relatively recently. It is very accessible from the Kansai and Chubu areas, so many divers visit here. There are more than 20 dive sites on the beach and by boat.

Lake Motosu is one of the Fuji Five Lakes and is the deepest of the five with a maximum water depth of 122 meters. The altitude is about 900 meters, and the diving is done using altitude diving procedures. It is the most popular freshwater diving spot in Kanto.

You will need to be taken to the beach by a service boat from Kamiko Fishing Port, as there is no access from land. Thanks to its location inside the bay, it is not affected by major weather conditions. Entry is from a sandy area, and the water gradually gets deeper. You can also ensure the water is deep enough for a restricted water area. To the right of the entry (north), there are rocky areas where bottom fish live.

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.

Kanmurishima Island is an uninhabited island with a circumference of 4km near the exit of Wakasa Bay in Kyoto Prefecture. The site is famous for its natural monument, the Great Horned Plover. The waters around the island are almost entirely surrounded by sheer cliffs, and the underwater terrain is dynamic.