Winery Tours are free and are held on the 1st and 3rd Saturday of each month May - November, from 1 - 4 PM. Tours will start every half hour (1pm - 1:30pm - 2pm - 2:30pm - 3pm - 3:30pm). The last tour is at 3:30PM.
Go to the Piazza and see the host. They will direct you to where you can wait for the next tour and a tour guide will meet you approximately 5 minutes prior to the start of each tour. Tours are approximately 20 - 30 minutes long. Private tours can be scheduled. See website for details.