I'm traveling in August with my sister. Were looking at going from Rome to Venice on the 19th and then back to Rome from Venice on the 22nd. We then will be in cortona from the 23rd to the 30th and are looking at doing day excursions to Florence, so traveling from Cortona to Florence and back, then another day from cortina to Rome and back and then a third day from cortina to pompeii. I was wondering if it would be cheaper to buy a rain pass or individual tickets. I was also wondering how easy it was to get from cortona to Pompeii and if it's possible for 1 day.