I know that the distances were posted on a thread last October. You can pick up the path from in front of buidling 55 and follow it along the canal. This will take you next to the golf course. The path to the treehouses is closed, but you can branch off and head over the bridge to SSR or continue to follow the path to DTD Westside.
I would assume that the SSR option will allow you to circle SSR and then come back, which would almost double the route.