Boo at the Zoo
October 22-24
Boo at the Zoo is a Washington, DC favorite Halloween tradition. Children visit the National Zoo at dark and enjoy trick-or-treating, animal encounters, keeper talks, festive decorations, and haunted trails. Great for the whole family, come enjoy the holiday at one of the nations greatest Zoos.
http://nationalzoo.si.edu/activitiesandevents/celebrations/boo/default.cfm?hpout=wu&xtr=