Pink Lake Hutt Lagoon, Western Australia - 7460 Limited Edition 10 Hutt Lagoon’s striking pink colour is thanks to algae that live in the water, Dunaliella salina. When exposed to sunlight, the algae produces beta-carotene, the red pigment found in carrots and other vegies. Thanks to those colour-producing properties, the algae are farmed for use in cosmetics and supplements, and as a natural food dye. The lagoon covers 70 square kilometres, tends to be at its pinkest in the mornings, and changes character according to the weather and the seasons.
