Douglas Islet is a small island north of Shelburne Bay in far north Queensland, Australia about 130 km north of Cape Grenville, Cape York Peninsula in the Great Barrier Reef Marine Park Queensland, Australia.
Map of Douglas Islet, Jardine River QLD 4874, Australia
It is about 20 km east from Orford Ness.
References
Douglas Islet Wikipedia(Text) CC BY-SA