I was there.
Dont know why beginners go there. It is such a tough place to kite gusty rocks, limited space etc etc Stuff up and your walking for three-four hours wet and cold....further up river, Attadale foreshore is safer, only trees to get caught up in there.
Treat the place with respect, if your going to come in at the end of the spit, come in walk back up then go again. Dont play in the Boat channel dont go too far into the no wind zone and everything that Gruzitskinski says.

Act like a dick and Pt walter will treat you accordingly.