Whitewashed Swallowtail Lighthouse (1860) is the island's signature vista, cleaving to a rocky promontory about 1km north of the ferry wharf. Access is via steep stairs and a slightly swaying suspension bridge. Since the light was automated in 1986, the site has been left to the elements. Nevertheless, the grassy bluff is a stupendous setting for a picnic. It has a wraparound view of the horizon and seals raiding the heart-shape fishing weirs (an ancient type of fishing trap made from wood posts) below.
All of the approximately 30 weirs dotting the waters around Grand Manan are named, some dating back to the 19th century. They bear labels such as 'Ruin,' 'Winner,' 'Outside Chance' and 'Spite,' evoking the heartbreak of relying on an indifferent sea for a living. A tear made by a marauding seal in a net can free an entire catch of herring in a single night.