The language of the Amarak, Amurdak, is now virtually extinct, the last known speaker being Charlie Mungulda.
[3] It was also known as Wardadjbak, and belongs to the Iwaidja language family.
[4] The Amurdak's traditional lands extended over some 900 square miles (2,300 km2) around the eastern coast of Van Diemen Gulf.
Their northern extend lay beyond Murgenella Creek and in the vicinity of Cooper Creek, while their southern frontier was close to the East Alligator River.
[5] According to the widespread creation story of the Cobourg Peninsula dreamtime, the Amurdak (Umoriu) descended from Imberombera deposited who children at a place near Cooper Creek known as Mamul.