Lake Alexandrina

Lake Alexandrina

Lake Alexandrina is a lake in South Australia, adjacent to the coast of the Southern Ocean, about 100 kilometres south-east of Adelaide. The Lake is located north of Encounter Bay and east of Fleurieu Peninsula.

The Murray River is the major river to flow into Lake Alexandrina. Others include the Bremer, Angas, and Finniss Rivers, all from the eastern side of the southern Mount Lofty Ranges. The lake is shallow and contains a number of islands near the southern end.

The lake empties into the sea near Goolwa (the channel is known as the Murray Mouth), but when the river flow is low the entrance is often blocked by a sand-bar.

The water in the lake is maintained as fresh water by a series of barrages across the islands near the Murray Mouth. This has produced an annual requirement for more than 1 million megalitres of fresh water to replace losses from evaporation that once came from sea water.

Hindmarsh Island is reputed to be the largest island in the world with salt water on one side and fresh water on the other. Lake Alexandrina is connected by a narrow channel to the smaller Lake Albert to the south-east.

The lake was named after Princess Alexandrina, niece and successor of King William IV of Great Britain and Ireland.

In Australian Aboriginal Dreamtime the lake is inhabited by a monster known as the Muldjewangk.