Yep. What Sailorchic said. Hard to get to anywhere on the ocean from Atlanta in 4 hours. Getting through Savannah unless on a weekend or middle of the night could be 5 hours easy unless you're leaving from Lithonia or somewhere else on the east or southeast side of Atlanta.
Really slightly further to SC and I see a lot more options there.
On the other hand, have you thought about trucking your boat to Atlanta? If you have a place to park it would probably cost you $4000 round trip, less if you haul it to a marina with a travel lift
like Lake Lanier. After you add all the travel, time lost
, wear and tear on you and your car it would be worth it.
Did that with my 42' Pearson
and over time it's saved me a fortune in marina fees
, gas and driving time.