Green River Trail

This is just under a 20 mile stretch of rail to trail project. Goes from the Tukwila-​Seattle border all the way to Kent starting along the Duwamish River which becomes the Green River. On a gorgeous Sunday afternoon it was pleasantly quiet, saw a few joggers and other bicyclists, but not crazy busy, made for a very pleasant trek down the first 8 miles or so and back. There are several spots where you can interconnect with the Interurban trail as well, paved with some bumpy spots, and mostly level without too many changes in elevation, so great for casual bikers like myself.