Zachary Taylor Park 
2900 Military Rd.
Arlington, VA 22207
703-228-PLAY
http://parks.arlingtonva.us/locations/zachary-taylor-park/
Park: Hike, Picnic, Walk
This 44-acre park is packed with ways to have fun, including nature trails, paths, a stream, two youth baseball/softball fields (permits take priority), and Invasive Plant removal events. drinking fountains are also available. Visit website to learn if your dog can safely play in the stream.