they recommend 4wd but if you stay on the hard sand you should be okay. Just don't drive on the fine sand.
The 'family beach' on the inlet side often has hard packed sand. Just walk down and check beforehand.
Yes
You should be ok to the parking area that serves the beach and the river, if its still there after Erma
Yes, but I wouldnt recommend going too far south with only 2W
Yes in certain areas
Yes, you can in certain areas. Be careful where you go and try to be there during low tide as there is more hard packed beach to drive on.
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