My best advice for new water is to buy a $20 top spot map. They mark the noteworthy grass flats and give seasonal codes R for good Redish season And r--to indicate ties when they are not as thick. In Charleston, the map was spot-on for labeling the prime flats where 2 hired guides took me.
Every large inshore estuary takes a lifetime to learn, so good luck, and don't get overwhelmed or discouraged. Main point rock jetties exiting to the ocean are always a Good place to start. Super heavy current, so you're better off on foot.
Get a good bookmark on your cell to track the tide charts, and watch for the high flood tides to chase tailers in the grass.
Good luck.