Following an out-and-back course that starts and finishes at Skyline Wilderness Park, the Napa Half Marathon takes runners on a double loop through the vineyards of Napa County north of the park. You’ll make your way along Third Avenue, Olive Hill Lane and Hagen Road in the first half of the race, followed by stretches along First Avenue, Coombsville Road and North Avenue in the second half, which then lead back to the finish line at Skyline Park.
(MORE: Napa Half Marathon event details)