Coffin Bay is a national park in on the Eyre Peninsula of South Australia (Australia), 301 km west of Adelaide, and 46 km west of Port Lincoln. The township of Coffin Bay is near the entrance to the National Park. The National Park features a long peninsula with a sheltered bay, coastal dunes, swamps and a spectacular coastline of islands, reefs, limestone cliffs and white surf beaches.
To the east of Point Avoid is Almonta and Gunyah Beaches, reputed to be among the country's finest surfing beaches. Reefs extend out to sea from Point Avoid to Golden island with Price Island further out.
There is a great variety of wildlife in the national park, including until February 2004 wild horses, known as the Coffin Bay brumbies. Many seabirds can be seen including white-bellied sea eagles, ospreys, albatrosses and petrels.
There is a camping area at Yangie Bay with camping fees payable on entry to the National Park. Access to the majority of the park's area north of Yangie Bay is via four wheel drive tracks only.