The 14km Parnkalla Walking Trail, named after the local Aboriginal tribe, meanders around Port Lincoln's coastline. As well as scenic views, it passes through a range of historic sites and contains a variety of plant and bird life.
The section from the caravan park to the town centre passes by the Marine Science Centre, Snapper Rock and Shelly Beach. As well as scenic coast views, this section has very interesting rock formations, composed of light-coloured metamorphic gneiss with intrusions of darker igneous dolerite dykes. The rocks were formed millions of years ago by volcanic activity and have been exposed by natural processes of weathering and erosion.