The Don Shepherd Nature Reserve Trail is situated on the old Karnup townsite. Access is via Baldivis Road turning into Karnup Road. You can find parking with picnic facilities off Karnup Road. The entrance is opposite to these facilities, take care when crossing north over Karnup Road. Enter the Don Shepherd Nature Reserve Trail, walking along the crushed limestone/mulched path to as far as Lugg Road, approximately 575 metres. Jarrah, Banksia species and Marri with an undergrowth of flowering shrubs, orchids and other wildflowers (Anigozathos manglesii; Burchardia congesta; Calectasia narragara) represents a type of bushland of the sandy coastal plain. The old Karnup townsite that was situated here was settled through the 1920s soldiers and group settlement scheme.