Lucky Bay is a bay located at on the south coast of Western Australia, in the Cape Le Grand National Park.It received its name from Matthew Flinders, who discovered it in January 1802. Flinders had sailed into the hazardous Archipelago of the Recherche, and found his ship surrounded by islands and rocks with nightfall coming on. Recounting the adventure, he wrote the following: In 2017 it was scientifically tested as having the whitest sand in Australia, possibly the World, knocking Hyams Beach NSW off its perch. (Coast Australia Series 3 Episode 1)