[1] Peloris Islet was formed between 7500 and 8900 years ago after sea levels rose at the start of the Holocene when Kangaroo Island became separated from Yorke and Fleurieu Peninsulas.

[3] As of 1996, no terrestrial vegetation was present as the islet has been ‘scoured of any soil and small eroded fragments, leaving only a few large boulders’ while the only vertebrate animals observed were New Zealand fur seals and crested terns.

You Yangs was a 672 gross tonnage barque rigged screw steamer owned by Howard Smith and Sons.

[8] It obtained status as a fauna conservation reserve declared under the Crown Lands Act 1929-1966 on 16 March 1967.

[10] As of 2012, the waters surrounding its shores are part of a habitat protection zone located within the boundaries of the Southern Kangaroo Island Marine Park.