Once again this year, many businesses in Fremont will open their doors to kids on Halloween to hand out candy and treats. This year’s “Trick or Treat in Fremont” takes place Sunday, October 31 from 2pm to 5pm. The event is free. Children have to be dressed in a costume and accompanied by an adult. Participating businesses will have a bright orange flyer posted on their door (or on their vendor table at the Fremont Sunday Market). Here’s a list of participating businesses so far, although the number is expected to be close to 100 by the time Halloween rolls around.