I just picked up the latest copy of Kidz Rule USA where they have a $1.00 coupon for  Boo at the Zoo in October.  It says Kids can trick or treat in their costumes, do creepy crafts, and look at the animals.  Their newest exhibit are baby bears, which are so cute. Both my children (3 and 6) throughly enjoyed this exhibit.  The glass makes you fee like you are right there with the bears.