I'm a Dive Control specialist of SSI(Scuba schools international) and instructor of underwater photography & navigation.
I usually dive in west and east area of Izu. My favorite place in Izu is ITA. There are various fishes. Especially, my favorite is Antennarius pictus. (Look at the left picture.)
One of my favorite diving spots in Japan is Okinawa. People in Okinawa are very friendly, foods are so delicious! Look at the center photo. It's Platax teira. I looked it very close. Amazing!
My favorite diving spot in the world is Saipan. People in Saipan are very cheerful, foods are so delicious!! Look at the right picture. It's Aetobatus narinari. So many Aetobatus narinari!! Incredible!