Beatrice Islets are pair of islets located in Nepean Bay about east of
Kingscote on Kangaroo Island in South Australia. The Beatrice Islets along with Busby Islet are three high points on the southern edge of a
spit that is exposed at low water. The spit which is named ‘The Spit’ extends from Cape Rouge about north of Kingscote in a south easterly direction across the opening of the
Bay of Shoals for a distance of about . The islets which are separated by a distance of about , have a north-south alignment. The islets historically consisted of sand dunes that were permanently above high water. However, an exercise to remove South African boxthorn, an introduced species considered to an infestation risk, which occurred either during the 1960s or the 1970s and which resulted in the islets becoming ‘susceptible to erosion, and tides and rough weather’ thereby reducing the ‘once stable vegetated islets to bare, wave-washed sand spits’. Subsequent attempts to stabilise the islets and encourage the deposition of sand were unsuccessful. As of 1987, the islets were reported as existing "only as a mudflat and cocklebed which emerges above the sea at low tide." ==Formation, geology and oceanography==