The Hardys Scrub Circuit offers a moderately challenging 5.9 kilometre loop hike (grade 3) within Onkaparinga River National Park, South Australia. This trail is anticipated to take approximately 2.5 hours to complete and winds through a unique ecological landscape.
The hike traverses a combination of dedicated walking trails and fire tracks, showcasing remnants of Grey Box Eucalyptus woodlands. These woodlands were once prevalent across the western slopes of the southern Adelaide Hills, but extensive clearing for agriculture and urban development has significantly reduced their presence. The diverse vegetation communities encountered along the trail include Pink Gums thriving in sandy areas and Southern Cypress Pine.
The designated starting point for the Hardys Scrub Circuit is the main trailhead situated at Gate 16 on Chapel Hill Road. This location provides convenient amenities for hikers, including car parking for 3-4 vehicles, a trailhead information board, and a picnic table. The well-marked trail follows a clockwise direction.
Alternatively, you can commence the hike from Gate 19 on Chapel Hill Road. However, if you choose this option, be mindful to look out for the walking trail branching off to your left approximately 50 metres after entering the trail. This path is located near the first trail marker but lacks directional arrows. Take a left turn here to follow the walking trail in a clockwise direction and complete the circuit.
For more information on this hiking trail, please visit Walking SA
Got some great shots from this hike? Upload your photos here to inspire others and show off the beauty of the trail!
Submitting your photos doesn’t mean you lose ownership. You can be credited for your contributions, and you can request removal at any time.
Please don’t copy GPX files or content from this site to AllTrails or other platforms. Each trail has been personally mapped, documented, and refined to support Australia’s bushwalking and hiking community. While some details come from land managers, every listing reflects significant personal effort. This is a free, community-driven initiative—your respect helps keep it that way.
Total distance: 5625 m
Max elevation: 188 m
Min elevation: 137 m
Total climbing: 128 m
Total descent: -129 m
Getting to the trailhead: Onkaparinga River National Park.
Accessing the Hardys Scrub Circuit is straightforward. The primary trailhead is located at Gate 16 on Chapel Hill Road within Onkaparinga River National Park. Parking is limited here, with capacity for only 3-4 vehicles. If travelling by car from Adelaide, head south on the M1 Freeway and follow signs for Stirling/Mount Barker Road (B33). Continue for approximately 40 kilometres until the turnoff for Sturt Valley Road. Follow this road until it intersects with Ironbank Road, then turn right and proceed onto Main Road. Turn right again onto Chapel Hill Road and locate Gate 16 on your left.
Closest towns to this walk: Aldinga Beach, Christies Beach, McLaren Vale, Noarlunga Centre, O'Sullivan Beach, Old Noarlunga, Port Noarlunga, Reynella, Seaford, Willunga
Explore Onkaparinga River National Park's Rugged Beauty. Onkaparinga River National Park offers a diverse range of adventures. Hike to clifftops for stunning views or descend to permanent rock pools teeming with life. Witness the rugged ridges and the dramatic Onkaparinga Gorge, a haven for native vegetation. Spot koalas, kangaroos, birds, and maybe even an echidna.
Discover the park's rich history. Explore heritage-listed huts and ruins of 1880s houses, remnants of the area's past as farmland. Shared trails welcome mountain bikers and horse riders.
Located just 35km south of Adelaide, the park caters to all interests. Explore the main walking trails on the north side of the gorge, accessible via Piggott Range Road. Public transport is also available from Adelaide's city center.
Choose a scenic spot by the river or enjoy a more formal picnic area with amenities, barbecues, and stunning views. The area near gate 25 offers a shaded picnic ground with shelters, perfect for a relaxing meal. Nearby wineries provide the opportunity to pair your picnic with a delicious South Australian red wine.
The Pink Gum Campground at the park's eastern end provides 11 campsites, including caravan-friendly options. Amenities include toilets, washing facilities, and fire pits (usable outside fire ban seasons).
Important Note: The park closes on days of Catastrophic Fire Danger and may also be closed on days of Extreme Fire Danger. Please check fire danger ratings before visiting.
Looking for more walks in or near Onkaparinga River National Park? Try these trails with a similar difficulty grade.
Favourite
Onkaparinga River National Park
Favourite
Onkaparinga River National Park
Favourite
Onkaparinga River National Park
Favourite
Grade 3 (Moderate) - Walks for Most Fitness Levels: Grade 3 on the
AWTGS represents moderate walking tracks. These are ideal for walkers with some fitness who are comfortable with some hills and uneven terrain. While suitable for most ages, some bushwalking experience is recommended to ensure a safe and enjoyable experience. Tracks may have short, steep hill sections, a rough surface, and many steps. The total distance of a Grade 3 walk can be up to 20 kilometers.
Plan ahead and hike safely! Carry enough water, pack layers for changing conditions, and bring safety gear like a torch, PLB, and reliable communication device. Check official sources for trail updates, closures, and access requirements, and review local weather and bushfire advice. Most importantly, share your plans with someone before you go. Being prepared makes for a safer and more enjoyable hike! Stay Safe, Explore More, and Always #ExploreSafe.
What you carry in your pack depends on factors like weather, terrain, and your adventure type. Not sure what to bring? My free planning, food, and packing checklists are a great starting point, covering day hikes, overnight trips, and multi-day adventures. Use them to customise your kit and always prioritise safety.
Before heading out, take a moment to fill out your trip intentions form. It’s a quick way to share your hike details with family or friends. If something goes wrong, they can notify emergency services, ensuring a faster response and peace of mind. Stay safe and enjoy your adventure
Spotted a change on this trail? Maybe there are new features, the route has shifted, or the trail is permanently closed. Whatever the update, I’d love your input. Your feedback helps fellow hikers stay informed and ensures that our trail info stays fresh and reliable.
