Robin Duska leads this walk for the Audubon Society of Northern Virginia.
Getting there: From VA-267 W/Dulles Toll Road take exit 14 (Hunter Mill Road/VA-674). Turn left onto Hunter Mill Rd (VA-674), right onto Sunrise Valley Drive, left onto S Lakes Drive, left onto Twin Branches Rd. Then take third right onto Glade Drive. Meet at the Nature House at 11450 Glade Drive in Reston.