Yeh Fraser Eastern beach has miles and miles of beautiful surf beach but I have seen numerous sharks close in the gutters while fishing. I have thought about doing a long downwinder along the beach but you'd want company and not want to fall in the drink too many times. You'd need a solid south east wind.
I have also considered kiting on the beautiful inland lakes but each time I check them out the wind is too gusty so I dont think they are a viable option.
Kingfisher Bay would be OK as long as the tide is not too high. You would also need the wind to be SW or NW which is a rare wind to get up here.
Hervey Bay is great for flat water in anything from SE to NW but the Weekend wind is looking very sad.

Looks like you might just have to throw in an extra fishing rod as any kiting is looking very doubtful