Gisela and I walked from East Lindfield to Echo Point Park via the 7.5 km Two Creeks Track that is managed by Ku-ring-gai Council and Garigal National Park. "Much of the western shoreline of Middle Harbour was declared a park in April 1892 and called 'Roseville Park' under the control of a board of trustees. Formal stone walking tracks, stone seats, stone bridges and sandstone steps were constructed in areas used by Aboriginal people for centuries. In 1917 during WW1, an Engineer Officers Training School was established and temporary bridges, walls and trenches were constructed. An inscription “C Coy Engineers” chiselled into rock near Moores Creek provides evidence of this. The gatehouse at the track entrance to Seven Little Australians Park was constructed in the 1920s by Council workmen. Additional track work was done in the late 1920s when the sewer was built and during the Great Depression by Government Unemployment Relief Scheme work gangs from 1932, when Eastern Arterial Road construction began." (Ku-ring-gai Walking Tracks)
The track passes under Eastern Arterial Road via the stormwater tunnel, which "may not be passable after rain” -- it was pretty dark while we walked there, but almost no water.
The track then is descending beside Gordon Creek to Middle Harbour and continuing along Middle Harbour to Roseville Bridge. Along the way, we saw post-war cobbled tracks and stonework and Coachwood forests. The Roseville Park was often likened to the Blue Mountains.
Some of the gumtree roots wrap around rock formations in an amazing way.
I used my GoPro capturing us walking on the tracks and let my drone fly obtaining impressive aerial views.
More pictures here.