there are some good finds on dry sand and if you get the chance and the people are gone hit the places where they were, but you will find loads of trash there also. I wouldn't hit it unless you have the time. Usually when you step into the water a little ways there is a groove or a slight downhill. I would try hunting that and then if your not turning anything up hunt the wet sand right where people would sit and the water would tickle your toes. I am assuming you are finding other stuff right? Coins, keys, hot wheels, bottle caps, sunglasses, cell phones and hair barretts? If all you are finding are coins then your going about it the wrong way and need to dig everything especially the lower tones, and the ones you would swear are trash. Perhaps the beach there is just worked too well and its not there to find. Either way its good to be out hunting. I promise you there are many days I find nothing special. Places where they play volleyball or other things on dry sand are great to hunt, you'll at least pick up clad.
GOOD LUCK I HOPE YOU BRING HOME THE GOLD!