TTM walkers can choose between a 4 mile walk or extend to 9 miles. Join walk leader Paul Sheldon as we explore this diverse wetlands ecosystem in the shadow of the Philadelphia Airport. The land is flat and the 4 mile loop is mostly covered in cinder. The extended 9 mile loop is also flat, but the trail is less well-established and can be muddy. The site is loaded with birds and has many observation areas and a few blinds, so you may want to bring your binoculars. Meet at the main entrance of the Refuge at 86th Street and Lindbergh Boulevard in Southwest Philadelphia in the Visitor Center. Weather permitting.