Guided public tours of the 30-acre U.C.S.C. Farm are being held from now through November. The 2-3:30 p.m. events are held on the first Sunday of every month. People are asked to meet at the renovated Cowell Ranch Hay Barn. The phone number to call to reserve a space is: 831-459-3240, or people can e-mail casfs@ucsc.edu,