Lower Otay, Lake Murray, San Vincente Resevoir, Lake Hodges, Sutherland Resevoir, El Capitan Lake, Lake Miramar, and Lake Barrett, I think I got all of the lakes that allow float tubes. Some are still closed. Check to see which days the lake you pick is open. Otay and Hodges are open Wednesday, Saturday, and Sunday. I think Murray and Miramar are open 7 days a week. Not sure on the others.