Bunyip Park sits alongside the Broughton River in the small South Australian town of Koolunga, where it also serves as the local playground.

The park is the starting point for the Koolunga River Walk, a trail that follows the riverbanks through restored natural habitat.

The Koolunga Development Association, working with the Department for Environment and Water, has undertaken significant conservation work here, removing invasive weeds such as pepper trees, African boxthorn, and horehound to protect the riparian environment.

The river area supports a notable diversity of wildlife, including thirty-four species of native birds, as well as turtles, frogs, and trout.