Buses leave San Gimignano for Volterra 4/day 2 hours, change in Colle di Val d'Elsa. Buses arrive in Piazza Martiri della Libertà .
For drivers, the town is ringed with easy & free parking lots. The most central & only underground one is at Piazza Martiri della Libertà â¬1.40/hour or â¬10/1 day