Mount Dutton Bay Conservation Park is a protected area in the Australian state of South Australia located on the west coast of Eyre Peninsula on islands located on waters in the sector between the north west to the east of the town of Coffin Bay.

[7] On 4 November 1993, additional land consisting of two unnamed islands located west of Horse Peninsula were added to the conservation park.

[3] In 1980, the conservation park was described as follows:[9] These islands were declared a reserve because of their significance as breeding grounds for seabirds, including the uncommon reef heron, sooty oyster catcher, crested and caspian terns, fairy penguins, pacific and silver gulls.

Rock parrots, silvereyes and the little grass bird are also known to nest here... Several small, low-lying, limestone and sand islands in Coffin Bay.

Natural vegetation has largely been replaced by introduced grasses and shrubs... With the exception of the unnamed island at the mouth of Dutton Bay, which is linked to the Mainland at low tide, the islands, in the absence of introduced predators offer secure breeding and roosting sites.