Zenisu

Senzu is located 36 km southwest of Jinzu Island in the Izu Seven Islands and consists of three reefs. It takes one and a half hours one way from Jinzu Island, three and a half to four hours one way from Shimoda, and five hours from Nishi-Izu, and can only be reached by charter boat.

There are SO many fish here! Large migratory fishes can be seen in schools and huge numbers of butterflyfish can be seen. You can see powerful schools of big fish such as sharks, green sea turtles, mackerel, large schools of hawks, mackerel, and whales chasing them.