<Tr> <Th> Surface elevation </Th> <Td> 0 m (0 ft) </Td> </Tr> <Tr> <Th> References </Th> <Td> </Td> </Tr> <P> Pink Lake (also known as Spencer Lake) is a salt lake in the Goldfields - Esperance region of Western Australia . It lies about 3 kilometres (2 mi) west of Esperance and is bounded to the east by the South Coast Highway . Although historically the water in the lake was visibly pink, as at 2017 it has not been pink for over ten years . </P> <P> 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 . Once the lake water reaches a salinity level greater than that of sea water, the temperature is high enough and adequate light conditions are provided, the alga begins to accumulate the red pigment beta carotene . The pink halobacterium grow in the salt crust at the bottom of the lake . </P>

Where is the pink lake in western australia