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Contour Channel Walk, Banyowla Regional Park Contour Channel Walk, Banyowla Regional Park

  • 1-3 hours
  • 7 km
    • Bush Walk Grade 3

      Suitable for most ages and fitness levels. Some bushwalking experience recommended. Tracks may have short steep hill sections a rough surface and many steps. Walks up to 20km.

Built in the 1930's, the Contour Channel in Banyowla Regional Park was created to carry water from Canning Dam to the metro area. The trail is mostly flat following the contour of the hills, however there are two steep sections where the channel was siphoned in to pipes to convey the water to the other side of the valley.
Located just 30 minutes drive south of the Perth CBD, the trail offers great views, an abundance of wildflowers during the months of August to November and an insight into some interesting local history.

Contour Channel Banyowla Regional Park P H A V C 8
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The Contour Channel walk follows a series of man-made concrete channels and steel and cast-iron pipelines along the contours of the Darling Scarp through Roleystone and Kelmscott. The project was a Depression era public works scheme and constructed, mostly by manual labour, between July 1935 and December 1936 to carry potable water from just below Canning Dam through the hills to a pumping station near Gosnells by following the natural contours of the Canning Valley and scarp - hence it was entirely gravity-fed. The channel supplied drinking water to the metropolitan area of Perth from 1940 to 1975.
The walk trail passes through forests of Marri and Flooded Gums and offers great views over Perth City and the Swan Coastal Plain. The area nearer to Canning Mills Road has a rich and diverse range of wildflowers from July to November.
Kangaroos and Black cockatoos can often be seen throughout the woodlands here.

Perth Hills Armadale Visitor Centre

(08) 9394 5410

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Be trail ready for Contour Channel Walk, Banyowla Regional Park

Here is everything you need to know before visiting this trail.

Time / Duration

2 to 3 hours


7km return


Steep sections.

What To Pack

Group B (Bushwalks and/or longer trails) required.

Trail Start

Banyowla Regional Park, Canning Mills Road, Kelmscott.

Get directions

Trail End

Bush Walk

Grade 3

Suitable for most ages and fitness levels. Some bushwalking experience recommended. Tracks may have short steep hill sections a rough surface and many steps. Walks up to 20km.

Visit Trail Tips for further information.

Difficulty Notes

There are a few steep sections.
Trail is mostly loose gravel paths.

Hazards & Warnings

Avoid entering the park on high fire risk days.
Snakes may be active during the warmer months - August to April.


  • Dog Friendly
  • Lookouts

Best time of year

All year round. For wildflowers the best time is August to November.

Trail Access

By road, 2WD. There is a small amount of parking just off Canning Mills Road, look for the sign for Banyowla Regional Park.

Prohibited Items

Off-road vehicles and fires prohibited.

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Wildflower Wanderer

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1 trail goers have rated Contour Channel Walk, Banyowla Regional Park as 3 out of 5!

We love to hear from people who've been on our Western Australian trails, so it would be most appreciated it if you wanted to leave a review.

Andrew Priest

Reviewed 27 May 2023, 5:14pm

It is an enjoyable walk with some history thrown in. It is not marked so it is important to download the KML file for use in your preferred bushwalking app. I use Locus Maps on Android and it did the track.

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