The cruise liner Costa Concordia is seen during the refloat operation at Giglio harbour at Giglio Island July 21, 2014. Technicians on July 14, 2014 began a complex operation to refloat and tow away the wreck of the Costa Concordia, two and a half years after the luxury liner capsized off the Italian coast, killing 32 people. REUTERS/Alessandro Bianchi (ITALY - Tags: DISASTER TRANSPORT TPX IMAGES OF THE DAY)