Washington & Old Dominion Trail (Fairfax and Arlington segment)
Dog rule: NOVA Parks trail guidelines: keep pets on a short leash and under control at all times, best place for pets is the right shoulder next to the owner. A revised W&OD regulation (No. 2.0, dated 10/21/26) would require pets on a leash no longer than 6 ft, it goes to the NOVA Parks Board Nov. 19, 2026, so recheck then. Hours 5 a.m. to 9 p.m.
Venue confirmed Checked Nov 10, 2026. Source