The Lone Palm Airport, located just across the walkway from Margaritaville, is a great place to stop for a drink (including beer and mixed drinks) and a snack while enjoying Jimmy Buffet tunes and the atmosphere of CityWalk.  It is easy to find the Lone Palm because it features the Hemisphere Dancer, one of Jimmy Buffets personal planes and the place where most of the book A Pirate Looks At Fifty  was written.  Just make sure you ask the bartender about the bullet holes!