The bus moves slowly along the winding road, carefully climbing the volcanic slopes of Sicily’s Mt. Etna. Fertile terraces laden with manicured vineyards stretch far into the horizon. Villages with white washed homes and red roofs bask in the sun, shaded by leafy chestnut, almond and hazelnut trees. We are invited to lunch at the Gambino Winery, a sprawling mountainside estate nestled at about 2400 ft. above sea level.