This outdoor event is just one of the many nature walks the county is hosting this fall. Volunteers from Arlington Regional Master Naturalist will accompany participants during the 1.5-mile walk through neighborhoods around Columbia Pike. Enjoy a sweet treat at ACME Pie afterward. A rain date is set for Oct. 24. Walter Reed Recreation Center, 2909 16th Street S. More information at https://www.arlingtonva.us/Government/Departments/Parks-Recreation/Parks-Events/2024/55/Foliage-and-Pie-Walk