Does your bus have a washroom?

Our bus does not have a washroom. 
However the day is very well divided that you are never too far from washrooms. In the morning it takes just over an hour from Florence to Siena, then just forty minutes from Siena to the wine estate. After lunch we go to San Gimignano (only ten minutes drive) and from there to Pisa which takes one and a half hours. After Pisa it's just over an hour to Florence, depending on traffic.