Wolf Howl-O-Ween takes the family out to the red and gray wolf habitats at sunset for a guided tour, plus Halloween nature games, crafts and a kids costume contest at 7. It's built for kids 5 to 12 but the whole family is welcome, and kids need an adult with them. Pick the 6:15 or 7:15 tour when you register, and show up by 6 either way since doors open at 5:45. The rain date is October 24.