We travel to Destin, FL quite often because Brad's parents own a condo at Tops'l Beach and Racquet Resort. We have a lot of restaurants that we love, but one of our favorites is Stinky's Fish Camp. It is actually located in Santa Rosa Beach off of 30A. While the food can be expensive, it really is amazing. I am not sure we have ever had a bad meal here. The only recommendation I have is that you should arrive early! Everyone knows how good this place is. We went on a Friday at 5:30 in June, and we had to wait an hour and a half. Something also to note is that you are required to valet your car.
