Skip to Content Skip to Navigation Show Trail Map Show About the Trail Show Important Trail Details Read Trail Reviews
Support Our Trails

Wiilman Bilya Trail, Collie

Bush Walk inSouth West

Blackwood River Valley, Bunbury Geographe & Collie, Great Southern, Margaret River Region, Southern Forests

  • Full day
  • 19.7 km
    • Bush Walk Grade 4

This 19.7 km moderately difficult trail is named after the traditional Noongar group (Wiilman) and the Noongar word for river (Bilya).  The trail commences at the Hamilton Peninsula on Coalfields Hwy, west of Collie and follows the water to Potters Gorge and Wellington Dam. Follow the brown boot markers

Views of the dam from the trail
Earn 2 Points

Trail Start

Get directions

The trail starts at Hamilton's Peninsular on the Coalfields Hwy

Trail End

Get directions

The trail ends at The Kiosk at the Dam in Wellington NP

Logo for Leave no Trace Initiative

Trails WA supports the seven principles recommended by Leave No Trace Australia for minimising your impacts when using the trails.

Learn more

The Wiilman Bilya is a full day walk in either direction with the option of an over night stop at the Nyingarn Campsite about 3.5 km from the Coalfields Hwy end of the trail.

The Nyingarn (Echidna) campsite has room for up to 25 people, with individual campsites, toilets, picnic tables and an undercover area provided. 

With a mixture of narrow trail and old vehicle tracks you meander through magnificent jarrh, marri and yarri (blackbutt) forests and pass some huge granite outcrops. Most of the trail is fairly flat, with a couple of short, but seriously steep sections.

Camping is also provided at the Potters Gorge end of the trail. Bookings can be made through the Park Stay website 

Collie Visitor Centre

(08) 9734 2051

Other Links

Expand your trip and enjoy great businesses nearby

Whispering Pines Bed and Breakfast

The Ultimate Getaway - Tranquil Whispering Pines is situated amongst natural bushland at the edge of the forest on the banks of the Collie River.

Photo of Whispering Pines Bed and Breakfast

Red Tail Retreat

Red Tail Retreat has everything you will need for a relaxing stay after exploring the Collie River Valley and surrounds.

Photo of Red Tail Retreat

Black Diamond Lodge

Collie’s funkiest affordable accommodation

Photo of Black Diamond Lodge

Mandia B&B

Mandia is a quiet rural property that has a range of beautiful rooms available three kms north of Collie. The Tuscan inspired BBQ area is a perfect outdoor setting amongst the garden.

Photo of Mandia B&B

Kiosk at The Dam

A Licensed Cafe in the Centre of the Wellington National Park. Local produce, wines & craft Beer & Cider Mountain Bike Hire & Glamping also available.

Photo of Kiosk at The Dam

Collie River Valley Tourist Park

Be welcomed by our friendly staff when staying in Collie with your tent, caravan or in one of our cabins. The rivers, murals, walks and mountain bike trails are waiting.

Photo of Collie River Valley Tourist Park

Be trail ready for Wiilman Bilya Trail, Collie

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

Time / Duration

5 -7 hours


19.7km one way

What To Pack

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

Trail Start

The trail starts at Hamilton's Peninsular on the Coalfields Hwy

Get directions

Trail End

The trail ends at The Kiosk at the Dam in Wellington NP

Get directions

Bush Walk

Grade 4

Bushwalking experience recommended. Tracks may be long, rough and very steep. Directional signage may be limited.


  • Camping
  • Public Toilet
  • Shaded Area
  • Water Access Points

Best time of year

March to November


No fees apply

Trail Access

By road from Perth to Potters Gorge campground or access from Coalfields Highway.

Prohibited Items

No pets, No open fires. (Seasonal restrictions apply for campfire ring use. No bicycles, No off-road vehicles.
Edge shaped like mountain horizon
topography pattern

Complete Wiilman Bilya Trail, Collie to earn badges and points!

Earn points and badges and become a "TrailsWA Expert" by completing trails and leaving reviews.

Earn 2 Points

Earn 2 points towards
your TrailsWA level

Edge shaped like mountain horizon
Alt text

3 trail goers have rated Wiilman Bilya Trail, Collie as 3.67 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.

Suzanne Occhipinti

Reviewed 22 Jun 2022, 7:37am

Great trail. Potters to about 8km in is great but from there it becomes very overgrown for at least 5km. That bit is not fun!. The last 3km or so to the camp is gorgeous. The hikers camp is fabulous, clean and in a stunning location.
Fayley Arthur

Reviewed 3 Mar 2021, 7:00pm

Due to a heavy handed burn 2 years ago on this tourism attraction, the jarrah forest understory is just overgrown soap bush. The trail is wildly overgrown and unmaintained with bushes overgrowing the track and many small trees fallen over the track.

Two km south of the campsite the jarrah forest finally returns to the natural healthy understory that it's supposed to have with moss and ferns and a multitude of plant varieties.

The campsite also seemed unmaintained with the beautiful campsites slowly returning to the forest, the toilets without toilet paper, and a small shrub growing in one of the shelter footings.

The burning of this resource was a sad waste of taxpayer money.
Kim Fawcett

Reviewed 11 May 2019, 7:56pm

Absolutely love this trail. One killer hill about 7 km from Potters Gorge, but the rest was quite manageable. A lot of the time you are walking with the bush on one side and views over the dam on the other. I was particularly impressed with the huge grass trees up the Potters Gorge end. The overnight campsite is in a very pleasant location over looking the dam

Like this trail? Explore others nearby

More around South West

Supported by great organisations

Trails are free and bring so many benefits to our community by providing opportunities to have fun, get fit, socialise, explore and challenge yourself. But they also have to be managed and maintained which only is made possible through terrific sponsors, donations and/or volunteering.

topography pattern