Isles of St Francis Conservation Park was a protected area in the Australian state of South Australia located on islands within the Isles of St Francis off the west coast of Eyre Peninsula about north-west of the state capital of Adelaide and about south-west of the town of Ceduna. The conservation park consisted of land on ten islands within the Isles of St Francis which form the south-westerly extension of the Nuyts Archipelago. The land first received protected area status as a pair of fauna conservation reserves proclaimed on 16 March 1967 under the Crown Lands Act 1929 in respect to Freeling Island and Smooth Island. Additional fauna conservation reserves were proclaimed on 4 November 1967 in respect to Dog Island, Egg Island, Fenelon Island, Hart Island, Masillon Island, West Island and all of St Francis Island with exception to section 220 which had been acquired by the Australian government. On 27 April 1972, all of the land proclaimed as fauna conservation reserves was reconstituted as the Isles of St Francis Conservation Park under the National Parks and Wildlife Act 1972. On 19 December 1991, additional land was added to the conservation park to extend protection over land located between high tide and low tide. As of 2010, the conservation park covered an area of. On 25 August 2011, all of the land within the conservation park was constituted as part of the Nuyts Archipelago Wilderness Protection Area with the result that the conservation park ceased to exist. In 1980, the conservation park was described as follows:
St Francis Island is the site of a reintroduction program for the endangered brush tailed bettong, which became extinct on the island in the early 1900s. St Francis Island is also one of only two islands in South Australia which has a population of the vulnerable southern brown bandicoot. This island also supports a population of the carpet snake, which is vulnerable in South Australia and in decline throughout its mainland range. Several rare or uncommon bird species breed on the Isles, including Cape Barren goose, the second rarest goose species in the world and the banded rail. Significant breeding colonies of Australian sea lion, one of the rarest marine mammals in the world, occur on Fenelon and West Islands… St Francis granite formation outcrops on eastern St Francis Island and this is a type locality… The Isles also support a large breeding population of short tailed shearwaters. New Zealand fur seals breed on Fenelon Island... This group of nine islands lies off the coast of South Australia near Ceduna, beyond the Nuyts Archipelago group of islands. The total area covered by the group is 1,312 ha, the largest islands in the group being St Francis Island, Masillon Island and Egg, Dog and West Islands. The islands consist of limestone and sand over granite bases. Nuyts Volcanics formation outcrops on western St Francis Island, and St Francis Granite formation outcrops on eastern St Francis Island. Both are considered geological monuments. The vegetation on the larger islands consists mostly of coast saltbush shrubland on the low-lying areas, with grassland and scattered low shrubs covering the remainder. Populations of bush rat occur on Dog and Masillon Islands. St Francis is also the site of a breeding population of short-tailed shearwaters. Other birds which breed on the Isles include Cape Barren goose, banded rail, rock parrot and little penguin. Significant breeding colonies of Australian sea-lion occur on Fenelon and West Islands and New Zealandfur seals breed on Fenelon Island… For most of these islands, pastoral leases have been held since the late 1800s. St Francis Island is the most disturbed of the group, a large part of it having been cleared and the whole island grazed by sheep, but the vegetation is now recovering. Introduced plants are common on St Francis Island. The remaining islands are in their natural state.
