My son took his family to the water park at Philadelphia for the weekend. On the way home, they drove to Bay Springs. They went to the swimming area on the west side of the dam. They were watching something in the water before they entered. It was the dorsil fin on some huge slimmers. He said some of the heads were up to 10 inches wide and bodies close to 20, 24 inches long. Some were light and some dark in color. I figure blues and channels. Catch them before I get there.