This may seem like an unusual comparison but my wife and I are flying to Savannah and then working our way down to St. Augustine. We've been to Charleston before (and loved it) but never Beaufort, Savannah or south. We're planning on driving through St. Simmons and Jekyll Islands on the way to St. Augustine.
We'll likely have a day where we could tour the Beaufort area or Cumberland Island further south.
Does anyone have any suggestions which one to choose? I've found some good walking tours in Beaufort and a ranger-led tour on Cumberland Island looks fascinating.