PHILADELPHIA ORcHESTRA AT MANN cENTER FOR THE PERFORMING ARTS ©J. Griffin ScHUYLKILL RIvER TRAIL ©J. Fusco Fairmount Park Looking for more outdoor adventures in Philadelphia? Venture to Wissahickon Valley Park , located in the northwest section of the city, where wayfarers can hike, bike, run, bird-watch, and horseback ride throughout 50 miles of nature. ©J. Fusco 18