Lake Hillier is The lake is surrounded by a rim of sand and a dense woodland of paperbark and eucalyptus trees with a narrow strip of sand dunes covered by vegetation separating its northern edge from the the northern coast of Middle Island.
The most notable feature of the lake is its pink color. The vibrant color is permanent, and does not alter when the water is taken in a container. The source of the pink color is considered to be due to the presence of the organism. In the right weather conditions, the lake turns a soft shade of pink due to the high concentration of algae in the water. Though high salt levels might not make for the most comfortable swim, visitors hoping to immerse themselves in Lake Hillier's brilliant pink waters are perfectly safe to do so.