you'll enjoy it. stay off the dunes, air down and you'll be fine. Its a great time. dont do either and you'll be the exhibit on the corolla beach idiots facebook page LOL, with people that drive their priuses, jeeps and trucks that think they are god and dont sink in the sand.
Please dont drive through the seawater swells during high tide, unless you want to impose a rust factor x100.
Id also recommend you bring an air compressor (have a fantek and if im doing sand driving will bring my milwaukee) and maybe some traction boards just incase. I always have them in my truck so its just a prepared item.