Australia is a country and continent located in the Southern Hemisphere.
Rex Gilroy, noted for propounding controversial theories regarding antiquity, has asserted that the Grail, far from being a vessel, was a Land of Plenty (Island of Plenty), which he identifies with Australia.
When Australia had been rendered barren by natural disasters, the ancestors of the Sumerians had left it. He claims that the story of the Grail is therefore far older than the Arthurian period.