From Healdsburg to Napa Valley, harvest season brings golden vineyards, fireside cocktails, seasonal dinners, and crisp days made for exploring outdoors.Autumn colored vineyards in Napa Valley.Credit: Gary Saxe/Getty ImagesEvery season has its thing. Winter offers snow-swept landscapes and the magic of catching those singularly perfect flakes on your nose. This gives way to spring flowers poking through the ground, offering their own special kin…