Marramarra National Park is a geological diverse 12,000 hectares
park, that includes sandstone ridges and deep gullies to volcanic
dykes and necks, shale lenses and wetlands.
The Aborigines of the
area were the Guringai people, who have left evidence of axe
grinding groves, rock engravings, cave art and middens throughout
The park is located on the northern outskirts of Sydney, in an area
west of the Pacific Highway, east of Old Northern Road and south of
the Hawkesbury River. It is one of a chain of reserves across
northern Sydney providing a scenic backdrop to the lower Hawkesbury
River and conserves important plant and animal communities.