MundAl - Boyup Brook to Lake Muir

StartClick to Reverse the Dynamic Map and Driving NotesBoyup Brook
FinishLake Muir Observatory
DifficultyDifficulty 1.5/5
Suitable ForAWD Motorbike 
Distance125.11 km
Minimum Days1
Average Speed49.39 km/hr
Travel Time2 hrs 31 mins
Page Updated: 21 Oct 2021


This Trek is part of a series of short treks that make up the complete MundAl Track. This part covers the route from Boyup Brook to Lake Muir and is the 4th trek in the series.

The route enables a variety of tourist activities and attractions to be visited and there is plenty of scope for bushwalking. You will pass close to, or through small towns and you will be in the vicinity of further 4WD activity if you wish to detour from the route provided for further exploring. You are encouraged to take time to experience the surrounding areas and their attractions.

You will have access to a range of accommodation encompassing everything from hotels, motels, B&Bs, regulated camping and bush camping.

Please note the additional information provided in the Preparation section below and be aware that will need to be on the look out for other recreation users including cyclists and hikers. Be prepared to encounter logging/mining/farming trucks at any time along the track.

How to Use this Trek Note

  • To download this information and the route file for offline use on a phone, tablet, headunit or laptop, go to the app store and purchase ExplorOz Traveller. This app enables offline navigation and mapping and will show where you are as you travel along the route. For more info see the ExplorOz Traveller webpage and the EOTopo webpage.


ExplorOz Traveller now features the NEW EOTopo 2024 mapset!


Fire restrictions are in place at various times along the full length of the track and must be adhered to at all times.

TrekID: 10326


MUST READ: You are strongly encouraged to read the following articles prepared by the knowledge experts at ExplorOz for your safety and preparation before undertaking any published ExplorOz Trek - Outback Safety, Outback Driving Tips, Outback Communications, and Vehicle Setup for the Outback.


Please refer to Road Reports published by the local shire and/or main roads for the area you intend to visit. Road/Track conditions can change significantly after weather events. Travellers must be responsible for their own research on current conditions and track suitability.
Parts of the track will be the subject of closure due to weather, fire or other events and will need to be monitored by anyone immediately prior to and during any use of the track. You will not be able to access a mobile phone network on some sections of the track.

If wet, do not attempt this track solo and always carry recovery equipment.

Be prepared to encounter logging/mining/farming trucks at any time along the track. There is also possible stock movement along the roads/tracks. Be aware that DRA, Water Corp and mining gates/signs may change access at any time.


No permit is required to travel this route however when entering any national park or state forest you must abide by any travel restrictions particularly if near a DRA or Prescribed Burning Operations are imminent. You need to be aware of Water Corp restrictions in any area you may be travelling through as well as fire restrictions. There will be seasonal closures on some parts of the track due to weather and other events and you must make prior checks for any closure information.

Fuel Usage

4cyl 18 litres4cyl 20 litres4cyl 25 litres
6cyl 19 litres6cyl 23 litres6cyl 22 litres
8cyl 19 litres8cyl 21 litres
Usage is averaged from recorded data (* specific to this trek) and calculated based on trek distance.

Best Time To Visit

Closest Climatic Station

Distance from Trek Mid Point 36.47km W
Mean Max. °C27.127.124.821.117.715.314.415.016.518.821.924.9
Mean Min. °C13.113.412.510.
Mean Rain mm19.618.629.960.1130.7164.7174.5146.0109.276.246.925.5
    Best time to travel      Ok time to travel      Travel NOT recommended


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Boyup Brook to Bridgetown-Boyup Brook Rd & Brown Seymour Rd
Driving: 4.84 km
Heading: 255°
Avg Speed: 62.4 km/hr
EST Time: 04:39
  • Head north on Bridge Street for: 0.15 km time: 00:16
  • Turn left onto Donnybrook Boyup Brook Road for: 0.11 km time: 00:10
  • Turn left onto Cowley Street for: 0.27 km time: 00:43
  • Turn left onto Jayes Road for: 4.31 km time: 03:31
  • Turn left onto Brown Seymour Road for: 0 km time: 00:00
Bridgetown-Boyup Brook Rd & Brown Seymour Rd to Brown Seymour Rd & Jayes Rd
Driving: 6.32 km
Heading: 176°
Avg Speed: 32.84 km/hr
EST Time: 11:32
  • Head south on Brown Seymour Road for: 6.31 km time: 11:32
  • Turn left onto Jayes Road for: 0 km time: 00:00
Brown Seymour Rd & Jayes Rd to Jayes Bridge Reserve
Driving: 6.19 km
Heading: 108°
Avg Speed: 35.04 km/hr
EST Time: 10:35
  • Head east on Jayes Road for: 6.19 km time: 10:36
Jayes Bridge Reserve to Jayes Rd & Muir Rd
Driving: 0.98 km
Heading: 139°
Avg Speed: 23.97 km/hr
EST Time: 02:27
  • Head southeast on Jayes Road for: 0.98 km time: 02:27
Jayes Rd & Muir Rd to Muir Rd & Winnejup Rd
Driving: 4.37 km
Heading: 160°
Avg Speed: 38 km/hr
EST Time: 06:54
  • Head south on Jayes Road for: 0 km time: 00:00
  • Make a slight right onto Muir Road for: 4.36 km time: 06:53
Muir Rd & Winnejup Rd to Muir Rd & Dwalganup Rd
Driving: 1.67 km
Heading: 165°
Avg Speed: 23.39 km/hr
EST Time: 04:17
  • Head southeast on Muir Road for: 1.66 km time: 04:16
  • Make a sharp left onto Dwalganup Road for: 0 km time: 00:00
Muir Rd & Dwalganup Rd to Dwalganup Rd & Westbourne Rd
Driving: 7 km
Heading: 180°
Avg Speed: 36.98 km/hr
EST Time: 11:21
  • Head southwest on Dwalganup Road for: 7 km time: 11:21
Dwalganup Rd & Westbourne Rd to Westbourne Rd & Pretty Gully Rd
Driving: 25.96 km
Heading: 104°
Avg Speed: 35.94 km/hr
EST Time: 43:20
  • Head east on Westbourne Road for: 25.96 km time: 43:18
Westbourne Rd & Pretty Gully Rd to Tuckett Rd & Cootayerup Rd
Driving: 11 km
Heading: 170°
Avg Speed: 28.85 km/hr
EST Time: 22:52
  • Head southeast on Pretty Gully Road for: 11 km time: 22:52
Tuckett Rd & Cootayerup Rd to Terrace Rd & Cootayerup Rd
Driving: 6.23 km
Heading: 109°
Avg Speed: 32.75 km/hr
EST Time: 11:24
  • Head northeast on Tuckett Road for: 0 km time: 00:05
  • Turn right onto Cootayerup Road for: 6.23 km time: 11:20
Terrace Rd & Cootayerup Rd to Boyup Brook-Cranbrook Rd & Terrace Rd
Driving: 7.06 km
Heading: 211°
Avg Speed: 102.75 km/hr
EST Time: 04:07
  • Head east on Cootayerup Road for: 0 km time: 00:07
  • Turn right onto Terrace Road for: 7.05 km time: 04:00
  • Turn right onto Boyup Brook - Cranbrook Road for: 0 km time: 00:00
Boyup Brook-Cranbrook Rd & Terrace Rd to Boyup Brook - Cranbrook Rd & Unicup Rd
Driving: 6.43 km
Heading: 88°
Avg Speed: 107.93 km/hr
EST Time: 03:34
  • Head southeast on Boyup Brook - Cranbrook Road for: 6.43 km time: 03:34
Boyup Brook - Cranbrook Rd & Unicup Rd to Wingebellup Rd & Unicup Rd
Driving: 9.34 km
Heading: 194°
Avg Speed: 45.67 km/hr
EST Time: 12:16
  • Head south on Unicup Road for: 9.34 km time: 12:16
  • Turn left at the end of the road, onto Wingebellup Road for: 0 km time: 00:00
Wingebellup Rd & Unicup Rd to Wingebellup Rd & Lake Unicup Rd
Driving: 5.47 km
Heading: 282°
Avg Speed: 95.15 km/hr
EST Time: 03:26
  • Head northwest on Wingebellup Road for: 5.47 km time: 03:27
Wingebellup Rd & Lake Unicup Rd to Lake Unicup Nature Reserve
Driving: 3.72 km
Heading: 185°
Avg Speed: 72 km/hr
EST Time: 03:06
  • Head south on Lake Unicup Road for: 3.72 km time: 03:06
Lake Unicup Nature Reserve to Track through Quarry
Driving: 4.34 km
Heading: 215°
Avg Speed: 72 km/hr
EST Time: 03:37
  • Head southwest on Lake Unicup Road for: 4.34 km time: 03:37
Track through Quarry to Lake Pindicup Rd & Lake Unicup Rd
Straight: 0.1 km
Heading: 211°
Lake Pindicup Rd & Lake Unicup Rd to Buranganup Rd & Pindicup Rd
Driving: 5.02 km
Heading: 264°
Avg Speed: 36 km/hr
EST Time: 08:22
  • Head west on Pindicup Road for: 5.02 km time: 08:22
Buranganup Rd & Pindicup Rd to Buranganup Rd
Driving: 5.14 km
Heading: 176°
Avg Speed: 35.82 km/hr
EST Time: 08:36
  • Head south on Buranganup Road for: 5.14 km time: 08:37
Buranganup Rd to Muir Hwy & Burranganup Rd
Driving: 2.87 km
Heading: 147°
Avg Speed: 35.88 km/hr
EST Time: 04:47
  • Head east on Buranganup Road for: 2.87 km time: 04:47
Muir Hwy & Burranganup Rd to Lake Muir Observatory
Driving: 1.06 km
Heading: 248°
Avg Speed: 34.36 km/hr
EST Time: 01:51
  • Head west on Muir Highway (102) for: 0.88 km time: 00:40
  • Turn left for: 0.18 km time: 01:11
Distance is based on the travel mode shown (Driving, Straight, Cycling, Walking etc), Direction is straight line from start to end, Avg Speed & EST Time is calculated from GPS data.

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