5. Lake Bumbunga, Australia
Rising in the Wakefield Region of South Australia, Lake Bumbunga is known among residents as “Pink Lake” for their strikingly rose-colored waves. Depending on the salinity levels and temperature, this small salt lake covers around 15 kilometers and shows amazing color fluctuations all year long, from pink to white to blue. The geological creation of the lake began millions of years ago as ancient seabeds were progressively exposed to produce a naturally occurring salt pan. Its unusual coloring results from a confluence of particular soil composition, groundwater chemistry, and microbial activity. Originally used in the 1800s, the lake’s salt mining past is still significant today for both scientific study of extremophile species and commercial salt output.
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