Vogue.comPro Surfer, Model, and Hawaii Native Koa Smith Shares His Guide to OahuVogue.comThis is surf country. The Guccis and the Louis Vuittons are all comfortably nested down on Kalakaua Avenue or at Ala Moana Center, an hour's drive south in Honolulu. Up here, all you need is a swimsuit, really. Shoes optional; sunscreen recommended.