At the coordinates (-33.751142, 151.084109) to wards the Pennant Hills fire trail, the footway doesn't exist. On 4the Feb'17 I went south on Kurrajong walking track but couldn't find the walking track near the Byles creek as this map suggested. I'm yet to explore the walk from the other side of the Pennant Hills fire trail (-33.749280, 151.087977)