Festivities will include free pet photos, pet sketch artist, animal adoptions, and more! Children accompanied by parents are invited to dress up in their Halloween costumes and trick-or-treat at participating merchants between 4-6pm. Plus, there will be a Howl-O-Ween Pet Costume Contest at 5pm. Register your pet for the Costume Contest at Woodlands Pet Food & Treats (Pacheco Plaza location only) anytime during business hours until October 31. The registration fee is $10 ($15 on October 31). One hundred percent of the registration fee will be donated to Hopalong & Second Chance Animal Rescue, www.hopalong.org.