[3] The island is reported as having a perimeter consisting of “sharp cliffs” to its south eastern coast which is exposed to the ocean and a “ledge” on its sheltered north western side.
[1] Access to the island is reported as being weather dependent due to the absence of a suitable landing point (i.e. beach or inlet) on its sheltered side and the presence of adverse sea conditions caused by waves diffracted around its shoreline.
[8] As of 2006, the following bird species have been observed on the island: white-faced heron, sooty oystercatcher, welcome swallow, silver gull, little grassbird, rock parrot, osprey, Australian pelican, black cormorant, black-faced cormorant, willie wagtail, crested tern, common starling, and masked plover.
[11] The island was named in 1908 after James W. Jones, secretary to the Commissioner of Public Works and (briefly) Premier of South Australia, Sir Richard Butler.
Since 2012, the waters adjoining the shoreline of Jones Island are in a habitat protection zone within the West Coast Bays Marine Park.