Polling station manager Teresa McCurdy (C) is pictured carrying a ballot box as she stands aboard a boat bound for Rathlin Island, off the north-east coast of Northern Ireland, on June 22, 2016, in which the island's population of around 100 people will cast their votes into during the EU referendum on June 23, 2016. The ballot box is usually taken to the island by ferry the day before voting occurs, because of the threat of bad weather. Rival sides threw their efforts into the final day of campaigning Wednesday, on the eve of Britain's vote on EU membership that will shape the future of Europe. / AFP PHOTO / PAUL FAITHPAUL FAITH/AFP/Getty Images