Senohama Reef

This is a point where more than 20 square iron boxes of 3m in length and width are sunk. The former Nishinoumi Town sunk many of these boxes a long time ago in order to provide a home for fish. The place is crowded with migratory fish and the boxes are falling down on the sandy bottom. You can often take the route of going around and coming back to see the fish, but if you like macro, you can stay here and find pikachu and other nudibranchs.

A wide variety of fish can be observed at this dive site. Sparrowfishes, snappers, snappers, groupers, scorpionfish, schools of yellowtail, scampi, yellowtail, yellowtail, turtles, and even the occasional shark or ray can be seen here. Nudibranchs are also abundant, especially brightly colored species such as the pikachu. This is a dive site with a fascinating ecosystem for divers.