Last Wednesday night, the brick façade of the Grandi building in Point Reyes Station became a screen for the ghostly silhouette of two humpback whales, parent and calf, projected through the darkness. By the next morning, the outline had given way to color.
Under the direction of Sophie Wood Brinker, a 35-year-old artist from Bolinas, some 40 volunteers—adults and children, art-school graduates and elementary school teachers, gardeners and librarians—took up brushes. They worked from…