RKC,
Like MJ I have cruised past there many times but never stopped. The spit is over two miles long, is there a particular spot? I've haven't noticed groups of boats hitting any one spot but I don't go around the back side much either. For those not familiar here is an image of the area:
If you have a good spot I trust your judgement. I know there is no access except by boat so if there is a beach it should be a good spot.
Another option is Basset's island shown on the map accross the bay from the spit. There is a long narrow piece of land there with beaches on both sides. The inside is good if you want less win, waves and boat wakes. As you can see it has some VERRRRRY nice scenery:
Here is a pic of the outer side, notice more wind and chop. It is outside of no wake zone:
Here is a pic looking right down the middle:
Usually folks don't beach their boats but you can anchor close enough to walk ashore. For some reason shortly after this photo was taken all the "scenery" packed up and left. Go figure?