Sunday Island (Shark Bay)
Sunday Island is located in the Indian Ocean 530 ft southeast of Dirk Hartog Island and 23 miles southwest of Denham in Western Australia at -26.124295 south latitude and 113.236538 east longitude. It measures approximately 263 ft by 108 ft. In the 19th century, it was a source of guano for British traders. It is now part of the Shark Bay World Heritage Site.