Many people are unaware of how accessible and close Venice is to Florence (2 hours by train). This is a great visit to add to the list of great places to experience while here. Round trip from Florence to Venice can be as low as 18 euros. The train drops people off right at the Grand canal so no cabs or rental cars required! Its a very easy trip from here. May is an ideal time to visit as it is not peak Tourist Season and the weather is very nice.