The Union Parks Department will host its annual Halloween bash Friday, Oct. 27, beginning at 6 p.m. at the large pavilion in the main city park, across from the pool.

The Union Chamber of Commerce will judge the costume contest for children newborn up to age 10, as well as group/family costumes starting at 6 p.m.

Prizes will be awarded to first-, second-, and third-place in each of the following categories: newborn to age 1, ages 2-4, ages 5-7, ages 8-10, and group/family.

The event also will feature chili, hot dogs, drinks, trunk-or-treat and hayrides.

The event is free to the public.

Businesses interested in handing out candy to trick-or-treaters should contact the Union Parks Department, 636-583-8471.

Businesses interested in being a sponsor of the costume contest can contact the Chamber office, 636-583-8979, or email director@unionmochamber.org.