We added an overnight on our way to Seattle.
Thursday, August 8, 2019
46.004913888888886, -122.8473361111111
45.9953726, -122.8429949
google map 
46.0337332, -122.8593779
Shoreline bike path heads south to Ahle Point. Columbia River riverboat boards here.
I took the access road north until my way was blocked by a parked train. Saw lots of trees in the distance but could not explore.