I have been to that area to visit my grandparents. Go to the Smyrna Dunes park area. You can fish the inlet near the ocean or towards the back of it. There are always these small whiting fish in the surf, some pompano, and small jacks. You can buy shrimp from any bait shop they are cheap and fresh. You can throw them out with a 1-3 oz sinker depending on where you are and what stage of the tide. In the ocean or inlet you will need to go heavier. These small fish are a lot of fun to catch and sometimes they catch sharks in the inlet too. As for the flyfishing dont know much about that its a bait game for most of the fishermen there but if you can catch them on bait you might be able to entice them on a fly.
Good luck and post some pics when you come back!