Whale Migration Where do they go?

I saw my first whale the other day, migrating down the east coast of Australia. It was close to shore, but not close enough to take a pic with my phone, unfortunately. 

I was unsure of their migrating habits and this picture explains their activity. Apparently 30.000 are to migrate, but I'm not sure if that is including the west coast as well, as it seems a lot of whales. 

Below are some photographs I took a while back of a pod of whales. They're just as beautiful as dolphins, don't you agree?