We went to Jekyll Island about three weeks ago, I'm just now posting a picture from it due to too many irons flying around. It's one of the closest places I know to Atlanta that has driftwood beaches. My brother had visited a few weeks earlier and showed me what he found. It turned out thte place is commercialized much more than I like, but on the north end of the island you can get access to the driftwood beaches and wander to your hearts content. If you pick your vantage point well you can get shots with unimpeded ocean to the horizon. I found going there on the off season is the best time for much lower rates at the hotel, far fewer people wandering around, and the light is at a lower angle all day and helps bring out detail in the sand better. Only hassle was the wind, it seemed to have a thing going on with my darkcloth and it wanted to run away at every chance.