The area bordered by Duffys Forest and Terret Hills to the south, and Smiths Creek and Cowan Creek to the north and north-east.
One of the longer firetrails in the area, the Long Trail is also one of the nicer ones. It has views along the way and a stunning lookout over Cowan Creek at the end.
The Smiths Creek Trail is a pleasant bushwalk in Ku-ring-gai Chase National Park. The firetrail descends through eucalypt forest to open grassland and a tidal creek.
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.
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.