Four Mile Run Park
Dog rule: City of Alexandria rule: dogs are welcome in public parks that are not designated dog exercise areas but must be kept on a leash at all times (leash length not specified). Off-leash only in fenced dog parks and unfenced dog exercise areas, which have defined boundaries, unless posted, open sunrise to sunset. This park also hosts an official dog exercise area/dog park (listed separately).
Venue confirmed Checked Nov 10, 2026. Source