Runners follow an out-and-back course that winds around Barfield Bay and Caxambas Bay at the Marco Island Half Marathon Bridge Run, which starts and finishes at the Shops at San Marcos, at the intersection of San Marcos Road and Barfield Drive. From there, this largely fast and flat course ventures out along the tree-lined roads on the islands just east of Marco Island, including a pair of out-and-back bridge crossings on Whiskey Creek Drive and the bridge over Goodland Bay.
(MORE: Marco Island Half Marathon event details)