Cherrybrook to Thornleigh is a 4.4km, grade 3 One way hike located in Berowra Valley National Park New South Wales. The hike should take approximately 1 hrs 45 mins to complete.
This walk is mostly within the Berowra Valley Regional Park. It has some beautiful sections with great scenery including sandstone rock features lots of ferns and great scenery along Zig Zag creek. There is an optional side trip to visit the remnants of the historic Thornleigh Quarry and Zig Zag railway.