These are the directions we use from Atlanta. It is very scenic in certain areas especially as you enter Florida. Don't speed on Highway 167 in Alabama! (I know!)
You can "grab" and move the circle buttons on the map to adjust your route if you like.
Here are a couple of alternate directions:
and
If you're coming in from / through Pensacola, we HIGHLY recommend that you use I-10 and get off at DeFuniak Springs (exit 85) and head south on 331. This is a little longer, mileage wise, but a lot shorter, time wise, especially during the summer.
Avoid having to go through Destin during the summer if you don't have to!