(FILES) This file photo taken from Catania, Sicily, on February 16, 2017 shows shows the Etna volcano covered with snow on February 16, 2017. After Monday's rest day, the 100th edition of the Giro d'Italia race will resume on May 9, 2017 with a 181km fourth stage from Cefalu in the north of Sicily to the summit of Mount Etna, Europe's highest active volcano. / AFP PHOTO / Marie-Laure MESSANA