I mean, Georgia isnt too far from the Gulf and it borders on the Atlantic so they could head for a port and get some boats and see about some fine Caribbean living since walkers dont swim.
Head North where it freezes in the winter...
A deep cold freeze on zombie tissue should destroy it, or freeze them solid so that Daryl in a parka could get a sledge hammer and go zombie head smashing...
The North = Cold, snow, rain, no electricity, no gas, no heat, no fun.......(I live here so I know and I've got both electricity, gas and heat.) Yea, I know, that's three....LOL!
"Go south young man"