Granite Island is a small island next to Victor Harbor, South Australia, not far from South Australia's capital city, Adelaide. It is unpopulated, however there are buildings and shelters on the island, including a cafe. It is a popular tourist attraction, particularly for people wishing to see Little Penguins (commonly called "Fairy Penguins") which breed and live on the island.
The island is accessible across a causeway from the mainland, either on foot or by catching an antique horse drawn tram.