Hi
I live and sail at yamba, in a southeast and east winds we go to the peninsula just of Shores Drive in yamba. Theres a walkway between some houses that gets you to a small beach that you launch from.
You have to dredge out towards the river mouth until you get into the wind then you have a nice flat run between the point and the wall that is about 500m long.
Theres a gap in the wall that you can go though then it gives you about 1km long run in total but it is more tide affected and is probably running out really strong with all this rain.
Southerlys; Not very good (to much of wind shadow)
Southeastlys; are very good
Easterlys;surprising good take your pick of very flat water to bump and jump in the main river.
Northeast to northerly;exellent 2km of really flat water Can launch there instead of whiting beach if you wanted to (sometimes it has more wind than whiting beach)
Westerly;gusty very short run but sort of be fun in strong winds
There by myself or one other guy most of the time