Dyer Island is a small, uninhabited island located off the southern coast of South Africa. It is part of the Overberg region and is situated near the town of Gansbaai. The island is known for its rich marine biodiversity, including a variety of seabirds and marine mammals, making it a popular spot for eco-tourism and wildlife observation. The island is surrounded by the Shark Alley, which is famous for its population of great white sharks. Dyer Island is also a protected area, designated as a nature reserve to conserve its unique ecosystems. Visitors can often see African penguins and other bird species nesting on the island.