This first one is from Shishikui Town on the Tokushima coast down near the border with Kochi. I believe you can go whale watching there....
These next two are from Muroto City on the other side of the Muroto Peninsula in Kochi. They certainly offer whale watching boat trips.
The last two are from Omijima Island off the north coast of Yamaguchi Prefecture. It was once a whaling area though whaling ceased in the first decade of the twentieth Century.
There is a small but interesting museum on whaling there and the traditions are still remembered in festivals.