Oregon   Esplanade walkway along Willamette River- downtown Portland Thank you to Todd from OR for the recommendationa and the great photos ; thank you also to Portland Park and Recreation for the additional photos - 3 mile wheelchair accessible loop around Willamette River - north side of loop is the Steel Bridge - east side of loop, which includes a 1200 foot floating walkway, runs along east side of river   see top photo below - south side of loop is Hawthorne Bridge - west side of loop runs through Tom McCall Waterfront Park and along west side of river  -  multi-use trail- can be very busy

_______________________________________ Oaks Bottom Trail- Portland another great recommendation from Todd from OR - 1 mile south of Portland - directions:  on east side of Esplanade continue south of Hawthorne Bridge, connects to Oak Bottom Trail - 2 mile multi-use, out and back trail - trail continues along east bank of Willamette River - "dead flat" except for one slight dip - park of 160 acre Oaks Bottom Refuge - train track rarely used