Hey Ste,
Right on. We kited at the island (Pinaroo launch) and moved a pine log upright post and it's concrete base from the wave breaking area also. It was submerging with every wave and it took two of us to drag it up the beach.
The post you are referring to for others benefit, is a 2.5 inch metal tube post sticking out of the wet sand by about 4 inches. It isn't that easy to see but is located directly in front of the beach access driveway down below the high tide mark. I think it was once a marker post or sign post for the old boat ramp that was there years ago and was cut off ages ago, probably at that time, below the sand.
The problem exists because Pinaroo has lost soooo much sand at the moment. The water has been washing half way up the driveway on high tides and all the beach and part the dunes have been washed away.
Take extreme caution when launching, landing and walking around the area where the dunes are, and also around the now destroyed fence (another useless waste of taxpayers money)!

See you at the beach soon!

KH