I had an up close experience with a HUGE whale and calf up at Exmouth the other day.
They are everywhere up here.
No pics or video it was traveling the same direction, came up right beside me and scared the hell out of me and I crashed.
I paddled out a bit and was going to try to get going but it did a 180 and was coming straight back towards me.
I then paddled back in a bit and managed to get going again, here's my track