Proximity to saltwater bodies of water?

I am curious. I know right now is not the time to be buying property. We are located in southern NJ and have considered moving closer to the coast. During our past property hunting, growing food wasnt on our radar. Now it is.

If we consider buying a property closer to the ocean/bay (properties backing up to a river or bay to 5-10 miles out) are there concerns with salt and unusable ground water or is each property a different situation? I mean currently there is vegetation growing on these properties but I am thinking more large home gardening issues to consider.

Ground water will be different for each place, where we are even water taken a few hundred meters form the beach is fine.  the things to look for where I am are Wind exposure and soil type, (here close to the sea up to about 5 miles inland the soil is almost pure sand) Salt in the wind can cause some issues but to be honest unless you are right on the coast it shouldn't stop you growing anything you want. Wind of course can stop you growing almost anything, have a look at any trees already there, if they lean over at 45% angles you may have issues, we certainly did in our last house!