The Cowan Track and Wilkins Track are both accessed via the Perimeter Trail in Duffys Forest, providing easy access to two lookouts over Cowan Creek and an Aboriginal engraving site.
The Middle Harbour Creek circuit is a relatively long bushwalk around Middle Harbour Creek. The route goes down one side of the creek from St Ives to Roseville Bridge, returning on the opposite side. This loop combines the Governor Phillip Walk. Lyre Bird Track, Two Creeks Track and Lockley Track.
A varied walk that takes you to the spectacular Birnie Lookout (Flagstaff Hill) overlooking Pittwater, before descending to Lovett Bay and returning via the Towlers Bay Trail.
A rough but interesting trail follows McCarrs Creek downstream from The Duckhole to a spectacular waterfall.
Duffys Wharf Track and the Slades Trail can be combined into a loop; a fantastic little hike that descends to Duffys Wharf on Cowan Creek and back up to Slades Lookout.
The Duckholes Trail is a firetrail in the Ku-ring-gai National Park in Terrey Hills. A fairly dreary walk, which is more appealing as a mountain bike trail.
The Wallaroo Track at West Head is accessed via the Salvation Loop, and leads to a rocky platform with nice views over Cowan Creek.
The Elvina Bay circuit is a short but very diverse loop trail at West Head, with a secluded swimming hole multiple cascades and waterfalls and nice Pittwater views.
Topham Track is a short 4WD trail that leads from West Head Road to the edge of the escarpment overlooking Cowan Water – venture a bit further into the bush for the best views…
The Koolewong Track is a short loop trail near West Head lookout, to a viewing platform over Pittwater.