On a bright March day, Mary Maggiore led a group of mostly out-of-state tourists through the cypress swamp at Wetland Trace in Jean Lafitte, offering up facts about the town’s pirate namesake and the newly-blooming blue irises. The trail begins by a levee, which exists to protect nearby residents from extreme weather, including hurricanes and intense winds, she explained. “Back here we have the town of Lafitte, we have buildings, we have houses, we don’t want those things to flood,” she said,