The annual Rockport Harvestfest celebration features the best regional bounty of the season — all in an unbeatable setting. New England food producers gather on one of Rockport’s historic working wharves to celebrate the best of local food with fresh lobster, chowder, pastries, grass-fed beef, wood-fired pizza, small-batch jams, locally-grown produce and more. Craft beers  produced in Massachusetts are on hand, along with Rockport’s own Twin Lights, with soda crafted from the 120-year-old company’s original recipes. Cooking demonstrations take place throughout the…