Where in Japan do they whale hunt?

Question:

Do they hunt all over the country (in the ocean of course..), or is it one specific place where they hunt alot?
They probably have different places where they do it, but which one of these places are the largest and most known? I heard something about this massive killing they did, where they gathered all the whales into a water together, and killed them. And the whole water was red with blood afterwards...
:(

Answer:

The whaling is far away from the waters of Japan. And Japan isn't the only country to hunt whales. Norway and others do it as well.