135 kilometres taking this route:

1. Take HIGHWAY 1 (Old Coast Hwy) towards BUNBURY, from Mandurah, down to Raymond Rd to ROELANDS and COLLIE; turn left onto Raymond Rd.
2. Take Raymond Rd to the road (HIGHWAY 107) to COLLIE; follow signs.
3. Take HIGHWAY 107 (Coalfields Rd) to COLLIE.

222 kilometres taking this route:

1. Go to HIGHWAY 107 (COALFIELDS RD) via HIGHWAY 20 out of Bunbury; once you are on HIGHWAY 107 (COALFIELDS RD), take HIGHWAY 107 across to HIGHWAY 120 (GREAT SOUTHERN HWY) towards NARROGIN. Turn left.
2. Take HIGHWAY 120 (GREAT SOUTHERN HWY) to Narrogin.