Trick-or-treat throughout the park. Train & carousel rides, face painting, photo booth, arts & crafts & more. Admission: $5. Rides: $2 (purchase at park). Costumes encouraged. 3 available sessions: 12:45 p.m., 1:30 p.m. & 2 p.m. Howarth Park. 630 Summerfield Rd., Santa Rosa. Register: srcity.perfectmind.com (look under “Special Events”).