Eastern Creek is part of the South Creek Catchment that flows into the Hawkesbury River. There are three tributaries along Eastern Creek. Eastern Creek provides habitat for animals such as water bugs, snakes, fish, frogs and mammals. Sparse scattered stone fragments have been found along this creek line giving it Aboriginal significance. The Darug used the swimming holes along the stretches of this creek.
Eastern Creek can be viewed from Nurragingy Reserve. Nurragingy Reserve is located four kilometres from Blacktown CBD and half a kilometre from Doonside shopping centre.
Eastern Creek from Eastern Road, Doonside in 2013