Jekyll Island is about an hour drive from the Jacksonville airport. Your easiest option is to request an Uber or Lyft once you land. If you would prefer, you can also rent a car, but once you are on the resort everything is walkable and you should not be needing wheels!
Wear a dress or suit you feel fabulous in! You do not need to wear a tux or a long dress but both are perfectly acceptable if you want. Just make sure to bring a shawl or jacket as we will be outside a bit and it might by chilly in the evening. Fingers crossed for great weather!