It is bounded by Proper Bay and Spalding Cove within the natural harbour known as Port Lincoln to the north, Spencer Gulf to the east and the Great Australian Bight to the south.

In 1913, the name proposed by François Péron and Louis de Freycinet from Baudin's expedition when it visited later in 1802 was declared as the peninsula's official name by the Government of South Australia.

While parts of its surface have been cleared and used for agricultural purposes in the past, it is currently occupied by two protected areas: the Lincoln National Park and the Memory Cove Wilderness Protection Area.

[3][4][5] A shore-based bay whaling station is believed to have operated at Spalding Cove between 1829 and 1832.

This South Australia geography article is a stub.