Wow - that fourth shot looks frightening! I am not quite sure what might have created a shock wave, but that is what it looks like.
If someone can come up with some filters that filter things like: - Over-the-handle-bars - Swimming - Dumping a gybe - Feeding the shore break - Nose diving a bottom turn - Lying down in an off-the-lip - Back slapping a big air
I reckon they could make a fortune out of northern Tasmania alone! Fortunately Goon Dog has been kind to us all (nearly all).