Fraser Island, Fraser Coast Area
Lake Wabby is relatively close to the ocean side of Fraser Island and unlike the other lakes, it supports several varieties of fish. It is known as both a window lake and a barrage lake. Window lakes form when the ground level falls below the water table. Barrage lakes form when a sand blow blocks the waters of a natural spring. This phenomenon is easy to see at Lake Wabby. On one side its deep green waters are bordered by a giant sand dune that is slowly moving into the lake. In a century or so, the sand dune’s inexorable march westward across Fraser Island will see it completely swallow the lake.