Flounder move into the bays and estuaries in the spring and summer. These fish can be found throughout the bays, in canals, in tidal creeks and around all types of cover and structure. During the fall, adult flounder migrate back out into the waters offshore where they will spawn during the winter. The fall months provide some of the best fishing in the channels and passes that lead to the open seas. Anglers will congregate in the passes during the fall and the fishing can be very good during the tidal changes.