Starting from the Gate 11 car park on Piggott Range Road, Onkaparinga Hills, this walk takes you on a circuit around Onkaparinga River National Park via the Sundews, Bronzewing, Bakers Gully, Echidna and Nature tracks. This challenging hike combines several trails around the Onkaparinga River upper gorge, covering a large area in the eastern section of the park, with views of the river gorge and the surrounding farmland. The hike initially follows the Sundews Track across the ridge, descending steeply into the gorge and crossing the river, then heads along the Bronzewing Track before venturing off-track along the park's eastern boundary towards the Pink Gum Campground. The hike continues along the Bakers Gully Track and the Echidna Hike, crossing the river again and passing a side-trip to a seasonal waterfall, then follows the Nature Hike though regenerating pink gum and grey box woodlands back to the car park. This loop consists of fire tracks and narrow walking trails, with some steep hills, overgrown sections and river crossings, suitable for moderately experienced bushwalkers with navigational skills. Dogs are not permitted in this park. Let us begin by acknowledging the Traditional Custodians of the land on which we travel today, and pay our respects to their Elders past and present.