I would agree with Graham here. That beach is bog city. The higher part of the beach is flatter and dry and the offshore wind blows across and tends to clean it off down to hard sand, (there are still sheltered soft areas here though), the steeper part you were on stays sheltered and has a much looser pack, plus it gets wet.
At New Years up that way, there was a particular section like this where despite the fact that the top of the beach in dry was bad enough, vehicles continued to try the steep part. It didn't matter what you were driving, (except maybe the little suzukis) with the steepness there was always a loss of momentum sideways, and bogness followed.
One thing that did seem to work for a friend in a D2 with standard size AT's on was when he tried to get going again, a small amount of throttle got him moving ever so slowly, but as soon as he floored it, it just dug in. So 1st low, and just crawled feathering the throttle until momentum gradually built to the point where he could get back on top of the sand.
cheers
Nick

