 The surface of the King Island Rise also occurs in water depths of less than , and includes the shallow () Tail Bank at its northern margin as well as King Island itself.Subaqueous dunes (sandwaves) and tidal current ridges and subaqueous dunes cover approximately of the seabed in Bass Strait.During Pleistocene low sea level stands the central basin of Bass Strait was enclosed by raised sills forming a large shallow lake.