Patches of Silurian and Devonian bedrock, roughly 400 to 430 million years old, have been exposed by the elements. There are no visitor facilities. Because of the possibility of disturbance to the bird colonies, visiting is discouraged, especially from May through August when the heronry is active. In the western basin of Lake Erie approximately nine kilometres west of Pelee Island, twenty kilometres from the mainland. Access is by private boat only.
Navigational hazards exist around the island.