Fort Washington National Park is a great park to stretch your legs. It offers plenty of walking trails and biking trails. You can fish from the water, or simply just picnic. The history that it offers is phenomenal. There is a visitor center and gift shop. The fort is fantastic. You're free to roam as you please. You can climb to the top of the fort or find yourself in the prison cells that housed prisoners. It overlooks the Potomac River and Mount Vernon can be seen in the distance. The only qualms I have with this park is the trash. The park is moderately maintained. Many broken things. There is a ton of trash along the shore.