Sunday Island lies within the traditional lands of the Brataolong clan of the Gunai nation. European settlers arrived in the area in the early 1840s and the island has a history of being grazed since at least 1860.
Sunday Island is situated within the territory of the Brataolong clan of the Gunai people, who have inhabited the area for a long time. European settlers arrived in the region during the early 1840s, and the island has been used for grazing since at least 1860.