G'Day Joe and John!
Yes we certainly did see whales - humpbacks (and we also saw dolphins in the surf at Brooms Head). Apart from the normal spouts as they come up to breathe, quite a few were having a play - breaching high and splashing about and flapping their tails - generally having a whale of a time!

(I just had to do it!)
Thanks John... sounds like I might have over estimated the distance. From your description its maybe closer to 4-5 ks?
Al.