Grist Mill Dog Park

Address: 4710 Mount Vernon Memorial Hwy, Alexandria, VA 22309

Mature trees provide generous shade across this large fenced off-leash park, which is stocked with kiddie pools, water stations, tennis balls, benches, picnic tables, and waste bag stations. The ground is a mix of grass and gravel paths, and the park draws a consistent, sociable crowd. GPS directions can be unreliable, so it's worth looking up the exact entrance before your first visit.