Saltwater fishing is the bomb, as my kids would say. Go out about 15 miles Use a Shakspeare rod, a large hook and shiners or cut bait. Get a beer.
Find your "hole" with the fish finder. Get a beer. Drop the line til it hits bottem, reel in very, very, very slowly. When you get a bite snap the rod back once. Reel in your grouper. Get a beer.
I caught 3 grouper and 20 mangrove snapper using this technique and it was fun, fun, fun.