A challenging 6-hour (11km) walk starting at Cowan Railway Station, following the Jerusalem Bay Track and Great North Walk with steep climbs, before reaching the Hawkesbury River Railway Station in Brooklyn. Enjoy stunning views of Ku-ring-gai Chase NP, diverse vegetation, and Aboriginal heritage. Best suited for fit, experienced bushwalkers, and not recommended for children under 12 (those under 16 must be supervised). Mobile reception is unreliable on the trail.