Ballston Beaver Pond Park 
4747 North Fairfax Drive
Arlington, VA 22203
703-228-3000
http://parks.arlingtonva.us/locations/beaver-pond-park/
Park: Hike, Picnic, Walk
Features – Stream – Paved Trail – Paved Trail Special Features: Great spot to look at wildlife in an urban setting. See website about bringing dogs to this park.