I do not live in Port St. Lucie, I live further South, but what I can tell you that might help you a bit is Google Earth. That site has helped me find spots til this day. On a side note, our fish down here are finicky this time of year. With cold fronts coming and going these next few months, our fish will turn off for a few days at a time. Once things level off, the fishing can pick up dramatically and then shut down again when the next front blows threw. Hope that helps, good luck.