West Island is a 10 hectares (25 acres) granite island lying 0.8 kilometres (0.50 mi) off the southern coast of the Fleurieu Peninsula, South Australia, 7 kilometres (4.3 mi) south-west of the town of Victor Harbor. It rises to a maximum height of about 40 metres (130 ft) in the south-west. Its main conservation value lies its seabird colonies.