Looking at your map, yes I think that's approximately what I did, but I will have to do it again to be sure. And I did it clockwise instead coming up the west side, cutting across Dyckman to the river until the path forced me out at around 155th street. It was dark already but the path was very well lit. I came back south along 5th Ave and Park Ave but I couldn't find my way back to the river until 116th. I will have to try again before I post a map.