Torrens Island Sanctuary which overlays the entire island. Torrens Island Torrens Island is an island in the Australian state of South Australia located in the Port River Estuary between the Port River and Barker Inlet, about northwest of the state capital of Adelaide. Since European settlement of Adelaide in 1836, it has been used for a number of purposes. Being uninhabited, an island, adjacent to Port Adelaide, and near Outer Harbor, Torrens Island was initially used as the site of a Quarantine Station for new arrivals (by sea) to South Australia. One example of its use was during the so-called "Boonah crisis".
HMAS Torrens (D67) 1917, "Torrens" operated throughout Maritime Southeast Asia. In June, the destroyer docked at Singapore for a refit. after which "Torrens" and the other five River class vessels sailed for the Mediterranean. After escorting a convoy from Port Said to Malta, and refits at the island, "Torrens" was assigned to Brindisi as part of the anti-submarine patrol force. The heavy but monotonous workload forced the destroyer to visit Malta in December for another refit. On the night of 22–23 April 1919, "Torrens" was one of six Allied ships patrolling the Adriatic. A force of five Austrian destroyers attacked, seriously damaging the