Once, urban runoff and shell dredging polluted Lake Pontchartrain, but dredging came to an end in 1990 and sea grasses have sprouted again, greatly improving water quality. Now, the lake offers an excellent chance to catch a state-record spotted sea trout. In January 1999, Kenny Kreeger landed a near 12-pounder, currently ranked second in the record book. Dudley Vandenborre landed a 101/2-pounder in April 2002. Relatively deep compared to surrounding marshes, the lake offers winter refuge to big trout. Many anglers either troll or cast jigs near the pilings supporting the three highway bridges and a railroad trestle crossing the lake. Contact: Dee Geoghegan Fishing Guide Service (888-773-2536).