I did PADI Open Water Diver course in English at Hidaka Wakayama .

He come from America and he is teaching English at Japanese high school now but he doesn’t speak Japanese well, so this course is only English.

( We have English course for foreigner in Osaka Kitahama Diving School BLUE LAGOON .

If there is some one who can not speak Japanese well,but who can speak English,please ask my diving shop. )

They are horse mackerels.

They have showed us excellent little tornad like above video.

There are some Hatatatedai fishes.

Here is sea slug which we call Manryou nudiblanch in Japanese.

Do you understand what kind of hall this is  ?

The hint is sea shells around here.

The answer is the house of octopus.

The octopus is Nocturnality .

He eat shellfish in night time,then throw them away around his house, so we can find his house easily.

This group of fish is Isaki babies.

Now he practice hovering in neutral buoyancy.

Finaly he masterd and became really good diver.

After we ascent,there was Japanese submarine over there.

This is very rare case,so we are lucky to see the submarine.