Point Lillias is a narrow peninsula jutting southwards from the northern coast of Corio Bay, near the city of Geelong, in Victoria, Australia. It was formed by a southward trending tongue of lava from the volcanic flows of the Werribee Plains. The seaward end of the peninsula forms a low cliff fringed by shelly beach ridges. Forming the end of the same lava tongue 500 m to the south is a small basalt island known as Bird Rock, connected by a submerged shoal to the peninsula. Point Lillias adjoins the evaporation ponds of Cheetham Salt's saltworks at Avalon.