St. Croix Island (Algoa Bay)
| Geography | |
|---|---|
| Location | Indian Ocean | 
| Coordinates | 33°48′31″S 25°44′14″E / 33.80853°S 25.73719°E | 
| Administration | |
| South Africa | |
St. Croix Island is the largest of three islands in Algoa Bay, South Africa, located within 8 kilometres of the Port of Nqgura. The islands are of critical importance to sea bird populations, including the endangered African penguin.