The California Department of Public Health has gone on record as saying trick-or-treating this year is a bad idea because of COVID. But they did offer some alternative activities that are safe AND fun for everyone, and best enjoyed with people from your own household. Take a look:
Creating a haunted house or candy scavenger hunt in your home
Having a scary movie night and Halloween-themed activities (pumpkin carving, face painting) at home
Participating in online parties/contests (e.g. costume or pumpkin carvings)
Attending car-based outings where people do not leave their car including drive-in events or contests or movies; driving through an area with Halloween displays
Eating a Halloween-themed meal with your household (alone or with up to 2 other households, not including your own, for a meal outside following all other gathering guidelines)
Enjoying a Halloween-themed art installation at an outdoor museum with your household
Dressing up homes and yards with Halloween-themed decorations
Giving treats at home only to those in your household.
Send a curated playlist and/or themed treats (or tricks) to your friends ahead of time.
Designing face masks that reflect your children's Halloween costumes
Prepare a Halloween basket for your children or Halloween hunt in your backyard
Jack & Carolyn talked about this on the Morning Breeze. Listen here: