An exploratory walk out along Shark Rock Ridge to Want Trig, with some stunning views over Cowan Creek. There is a rough trail all the way along the ridge, although some navigation skills and a topo map are essential.
A dog-friendly and family-friendly bushwalk along a firetrail to Calabash Point. At the end of the trail are the fascinating ruins of the Fretus Hotel, built around 1900 and abandoned by 1920.
An easy walk along Coba Ridge via the Neverfail Fire Trail to Collingridge Point, which has nice views over Berowra Creek. A more challenging side-trip visits an Aboriginal rock art site and the Coba trig station.
A somewhat uninspiring but pleasant bushwalk between Gordon and Thornleigh, which is mostly along the Lane Cove Valley Walk (which is part of the Great North Walk).
Sams Creek Loop combines Sams Creek Trail and the Berkeley Fire Trail in Berowra, to create a pleasant bushwalk that avoids the crowds.
A boat trip along Cowan Creek, exploring some of the Aboriginal rock art and early European settlements along the creek.
A loop walk in Marramarra National Park which descends to Marramarra Creek via the Smugglers Ridge Track, and returns along the Marramarra Ridge Trail. A pleasant but not particularly exciting walk.
A fairly demanding walk along an undulating ridge to Taffys Rock, a large sandstone platform that provides panoramic views over the Hawkesbury River and Cowan Creek
A short bushwalk along Gundah Ridge, with some nice views over Berowra Creek
The Myall Trail is a short firetrail that leads to the end of a ridge in the Ku-ring-gai Chase National Park, with views over the park.