When organising (I use that term super loosely!) a hike, I wanted to be able to see how many kilometres it was going to be.  The tool I use to use when I would travel and map a possible jog / run I would use Map My Run , so I resurrected my account to map the hike from Malabar to Watsons Bay.  Part of it will overlap the Bondi to Manly walk .                          Create Routes                      or Search for a route                      from millions at MapMyRun                  I'm sure there are web and normal apps that allow for hiking path drawing to follow but it's funny how the mind just wants a simple option and has a "go to".
Thoughts and mutterings from @vontweeter