26oct10:00 am2:00 pmHalloween Trick or Treat at Las Posas Plaza Event DetailsHalloween Trick or Treat at Las Posas Plaza, just off the 101 at Las Posas exit. Come dressed up, enjoy free popcorn and candy treats. 10am-2pm Event Details Halloween Trick or Treat at Las Posas Plaza, just off the 101 at Las Posas exit. Come dressed up, enjoy free popcorn and candy treats. 10am-2pm 101 Freeway at Las Poasa Rd Time(Saturday) 10:00 am - 2:00 pm CalendarGoogleCal