We did vacation down there a few years ago. It was lovely, especially coming from Maine and wintery weather!
We rented a house right on the beach with a crowd of family members. We did more cooking and eating at home than eating out but did go to a seafood place for a celebratory dinner one night. (we were there for a Citadel graduation)
I spent most of my days on the beach, I was doing an oral course of steroids prior to starting Tysabri, so I wasn't at my best, but we did a trip to a lighthouse that is nearby, fished from the beach rather than the pier (they charged to fish off the pier) and did a little shopping and lunch one day on the main street of town. The place where we ate on the main drag there was delicious and not too high priced. The weather was gorgeous, the beach was spectacular and the water was warm.
I had a thread on it on here but it appears it has been archived and I am not sure how to find it now!
Have fun and take lots of pics! We wanna go too!