Mt Kuring-gai to Calna Creek is a 9.4km, grade 4 Return hike located in New South Wales. The hike should take approximately 4 hrs to complete.
From the ridge above Berowra Creek this walk goes steeply down into the valley following Calna Creek. The narrow bush track section is quite beautiful with plenty of small creek crossings and sandstone overhangs. The grasslands section just before coming to the junction of Calna and Berowra Creeks is also very pretty.