Then there is the mysterious bright pink Lake Hiller in Western Australia. It lies about 3 kilometres west of Esperance and is bounded to the East by the South Coast Highway.
The lake is not always pink in colour but the distinctive colour of the water changes as a result of green alga Dunaliella salina, halobacterium Halobacteria cutirubrum, and/or high concentration of brine prawn.
Length: 4 km
Area: 99 ha
Surface elevation: 0 cm
Width: 2 km
Its startling colour remains a mystery and while scientists have proven it's not due to the presence of algae, unlike the other salt lakes down under, they still can't explain why it's pink.