In St. Bernard Parish, Flat Bay is listed as a lake, which makes it sensible to spend more time casting than relocating. I would begin around one familiar-looking part of the water instead of trying to cover the whole water, because a first trip should give you a useful clue rather than a tour of every corner.
Flat Bay Size, Maximum Depth and Volume
A dependable standalone acreage, maximum depth, and storage figure is not published for Flat Bay, so the safer move is to use what I can see instead of guessing at a measurement, so on a first visit I would treat the first outing as a chance to learn the water's scale. I would spend more time learning the shoreline before building a bigger plan, and I would plan modestly until the size of the water is clear.
Fishing This Water
The fishery at Flat Bay is lightly documented, so the practical choice is to avoid copying a species list from a nearby lake, so on the first visit I would carry simple freshwater gear until the fishery is clearer. I would keep things simple with one versatile setup carrying live bait plus one or two simple lures, because the goal is to find out what responds before narrowing the tackle any further.
A Practical Flat Bay Game Plan
My first plan for Flat Bay would be to fish one straightforward area near the launch deliberately and make changes only when the results justify them; I would spend more time fishing a promising area than driving around looking for a perfect one.
Nearby fishing waters
Explore nearby waters, including local Featured destinations. Check each page for access and fishing restrictions.
Distances are straight-line estimates between mapped water locations.