There can be no question that Lake Hillier is a scientific oddity. It takes just a quick look to realise that this is a body of water with a difference. Most lakes appear blue, or maybe green. But the shimmering waters that lap Lake Hillier’s scenic shores?
They’re bubble gum pink. Located on Middle Island, in Western Australia’s picturesque Recherche Archipelago, this is a puzzle that has long baffled scientists. It shouldn’t be possible for a lake to be bright pink. But Lake Hillier? It most certainly is.
There are various theories — the main one being that the lake’s high saline levels, coupled with a rare algal species, are responsible for its most notable feature. Yet Lake Hillier remains pink all year round — and even when removed from the lake and bottled, the water’s distinctive colouring stays as vibrant as ever. Such things ensure that Lake Hillier is a scientific oddity.