Lake Hillier is a saline lake located in the Middle Island off the south coast of Western Australia. It is particularly notable for its pink colour. 

Credits,

Image taken Under Creative Commons from,

DÜNYANIN EN GÜZEL GÖLÜ / HILLIER (PEMBE) GÖLÜ / AVUSTRALYA / BİLİYOR MUSUN?

https://www.youtube.com/watch?v=RxhqW1J0Cnc&t