Boo in the Zoo is Oct. 17 – 19 and Oct. 24 – 26 for ages 12 and under is being held at the Greenville Zoo. The event features trick-or-treating, un-haunted houses and fun-filled booths. Tickets for member adults are free and member children $5, non-member adults $4 and non-member children $6. Boo hours are Friday 5:30 – 8 p.m.