Elaborate pumpkin displays will line the trail, where greeters will pass out goodies to costume-clad children at treat stations along the route. Those who dare can follow a trail of eerie fog and mysterious sounds through a spooky graveyard to the Haunted Reptile House, where witches, mummies, vampires and other monsters have taken up residence for the Halloween season.

Returning this year are Ghouly Games, featuring Halloween-themed games, prizes, arts and crafts. Also back is the popular live mini-musical “Zoo Boo Revue” at the Zoo’s Main Picnic Grove, performed every half hour starting at 6:30 p.m.

The excitement continues at the Wild Adventure Ride’s spine-tingling “Haunted Mine Ride”, where passengers are transported into the deep, dark depths of a haunted gold mine as a ghostly prospector guides the thrill-seeking visitors through the run-down mine and sends them on a chilling rollercoaster ride through creepy caverns.

Tickets are $6 per person, ages 2 and up. Tickets for the Wild Adventure Ride are an additional $2 per person. Time slots for Zoo Boo are 6 p.m., 6:30 p.m., 7 p.m., 7:30 p.m. and 8 p.m. If a date and time slot is not sold out, a limited number of tickets may be available at the gate that day after 5 p.m. for $10. -- www.detroitzoo.org