I hope you weren't expecting a marked map!
There are flats all over the Chatham/Monomoy area. At low tide there is a flat everwhere there isn't a channel. At high tide there are flats where there were beaches only a couple of hours earlier. Try to avoid areas of heavy boat traffic. Look for birds and look for bait. Look for moving water.
Don't follow the crowd! I can't count the number of times I have watched an armada of other boats fishing in one spot while I sat on another flat a quarter mile away catching fish after fish.
Pay attention to troughs, edges, weed beds, and the holes left by clam diggers. Stripers prefer to follow the deeper troughs across the flats. If a flat is mostly sand, fish the weed/grass beds. If a flat is mostly weed/grass beds, fish the sandy spots. Baitfish and crabs hide in the weedbeds and stripers key in on these areas. Clam diggers stir up sand eels and crabs.
