The small rural community of Calca is known for the inselbergs called Murphy's Haystacks, its red granite mined in the area, and for a seal colony breeding below the cliffs at Baird Bay. Calca is located approx. 30 kilometres south of Streaky Bay on the Eyre Peninsula in South Australia. The township's name is derived from an aboriginal word for "stars".
Eyre Peninsula is bordered by Spencer Gulf and Great Australian Bight with over 2,000 kilometres of coastline for fishing, whale watching, watersports, swimming with sea lions or diving with sharks.