Right alongside of the George Washington Parkway is a trail that runs parallel. Along the road nearby neighborhoods have outlets that connect to the trail. The trail has slopes, footbridges, and wide open fields. Along the way there are great places to participate in activities like fishing, picnicing, and ultimate frisbee.
The trail starts at the tip of Old Town Alexandria and goes until Mount Vernon. This is a great place to take a dog to and let him off the leash. Also this is a good place to go for a walk with the family. There are several public tables outside and BBQ pits ready for use.
A great place to go fishing
A bench right across from the biking / running / walking trail
