Firefly Festival Loading Map.... Fort C.F. Smith Park 2411 24th St. N. Arlington, Virginia 22207 38.901837 -77.09075999999999 Date/Time Date(s) - 06/29/20147:30 pm-9:30 pm Location Fort C.F. Smith Park Cost: $7 Contact Details Rachel Tolman703-228-6535 Add to Calendar Download iCalendar file Add to Google Calendar Join us for a night of games, scavenger hunts, crafts, firefly walks, and more at the Firefly Festival on June 29. The annual event will take place at Fort C.F. Smith. You can register here. Learn more about fireflies here.