A crew member stands at the entrance of an immobilised ferry boat during the first day of a 48-hour seamen strike at the Piraeus port near Athens April 10, 2012. Greek ferry workers began the 48-hour strike on Tuesday, leaving travellers stranded during one of the country's most important holidays and ignoring calls from the government to not disrupt the key tourism sector. REUTERS/John Kolesidis (GREECE - Tags: CIVIL UNREST POLITICS BUSINESS TRANSPORT)