Categories
Nature Science Travel

How Australia’s Lake Hillier gets its pink color

Lake Hillier in the Recherche Archipelago of Western Australia off the coast of Cape Arid National Park is known for its pink color.

Scientists postulate that the lake’s solid bubblegum pink color results from the intermixing of Halobacteria and a salt-tolerant algae species called Dunaliella Salina.

How Australia's Lake Hillier gets its pink color

Halobacteria produce red pigments mixed with salt-tolerant Dunaliella Salina, creating a stunning strawberry milkshake color.

The chemical reactions between the salt and the microorganisms make the lake ten times saltier than the ocean nearby.

There are 29 other pink lakes in the world. But unlike other pink lakes that morph into different colors, Lake Hillier retains its pink hue all year round. It’s also safe to swim in.

How Australia's Lake Hillier gets its pink color
How Australia's Lake Hillier gets its pink color

The contrast between the bright pink and dark blue ocean water is also striking when viewed above. Learn more about Australia’s pink lake below.

How Australia's Lake Hillier gets its pink color

By Wells Baum

Wells Baum is a daily blogger and curious explorer of the world who connects the dots between life, arts, and knowledge.