My partner and I are booked to stay at Castello Vicchiomaggio in Greve in Chianti for two nights, and plan to travel from Firenze to Greve on Sunday, July 26th 2015. We want to travel by bus, as renting an automatic car seems extremely expensive as does a private car hire, but I can't seem to figure out the SITA bus schedule - it looks like there are no buses from Firenze to Greve on Sundays? If this is indeed the case, does anyone have any suggestions on a cost-effective way to get to Chianti on a Sunday afternoon?

Also, is there a local taxi service in the Greve area to be able to get around during the day to visit different wineries (we would need to be picked up from Castello Vicchiomaggio)? We would like to see visit Castello Di Verrazzano and the town of Greve on Monday, July 27th 2015.

Thank you for your help!