Thornleigh to Marsfield is a 6.1km, grade 4 One way hike located in Lane Cove National Park New South Wales. The hike should take approximately 2 hrs 30 mins to complete.
Following the Great North Walk and the upper reaches of the Lane Cove River South this walk explores dense bushland surrounding the river. You will experience a variety of trails along this walk from steep bush tracks to wide biketrails. The common feature however is how well managed these trails are. The section just south of Thornleigh is the highlight of the walk as the bushtrail winds its way around the hill.