Hi choco,
Water was about a foot deep, perfect for kiting, Approx .7 to .9 Port Adelaide tide. Windsurfing would need more depth to be safe.
My runs were 500-800m long, couldv'e gone twice as long but I just couldn't hang on any longer than that.(need to get fitter

)
A lot of weed out there thou.

PS I was very lucky to have the tide and strong wind align, on a w/end!! been waiting along time for this to happen.