It's going to be hard for Philadelphia to turn the Schuylkill river into a place to enjoy. The trains and I-76 make hard fences to jump. At one time the river for us was just another freeway of sorts; more like the freeway and rail lines we curse than like the park we'd like it to be now.
San Francisco has an amazing connection to the Bay but that is only because of two disasters. One is the collapse of trade economy which destroyed the port and the other was the earthquake that destroyed the Embarcadero Freeway. Now SF has a clean shot at the Bay. There's not much here for Philly to learn from unless it's to wait and turn industrial collapse and natural disaster to good use.
What to do....?