Getting there

Start (or finish) at Thornleigh (Bellamy St trackhead) to Mt-Ku-ring-gai or Berowra station, to the north of Sydney. Public transport (train) available at both ends of the walk.

Maps

Hornsby 9130-4S topographical map (1:25k). You can also use the Great North Walk official route map (1:32k)

Route/Trail notes

Goes through the length of Berowra Valley Regional Park. Can be done in one day, an overnight walk or two day-walks. See reference Web sites for detailed track notes

Permits/Costs

Nil

Other References

https://hikingtheworld.blog/2017/05/06/thornleigh-to-berowra-gnw/

For overview of all Great North Walk sections:   https://hikingtheworld.blog/index-of-hikes/overnight-walks-near-sydney/#GNW

http://www.wildwalks.com/bushwalking-and-hiking-in-nsw/berowra-valley-regional-park/thornleigh-to-mt-kuring-gai.html (covers most of the route, but ends in Mt Ku-ring-gai rather thn Berowra)