Isle of Hope or Thunderbolt in Savannah. City Marina (higher priced) and a scad of others in Charleston. South of Savannah, Brunswick Landing is a nice spot, reasonably priced, popular with folks who need to be north of Florida during hurricane season for insurance purposes. Not far off I95 so easy to get to the Savannah Airport. There are shuttles serving Brunswick and St Simon's Island.
Osprey is a really nice little place by the way and not far from the MB airport.
"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"