Lake Hillier is a pink-coloured lake on Middle Island, the largest of
the islands that make up the Recherche Archipelago off the coast of
Esperance.
From above the lake appears a solid bubble gum pink. The lake
is about 600 meters long, and is surrounded by a rim of sand and dense
woodland of paperbark and eucalyptus trees. A narrow strip of sand dunes
covered by vegetation separates it from the blue Southern Ocean.
No-one fully knows why the lake is pink. Scientists speculate
that the colour comes from a dye created by bacteria that lives in the
salt crusts.
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