Sustainable Philadelphia: "Philadelphia Riverfronts and Trails"Now that the Delaware and Schuylkill Rivers are healthier, Philadelphians are flocking to their banks to walk along paths, play in parks, and get onto the river. The Tidal Delaware Water Trail runs through Southeast Pennsylvania's towns, cities, and shorelines - allowing paddlers, sailors and motor boaters to safely experience the cultural, ecological and historical treasures along the river.