Why Is This Lake in Australia Bright Pink?

Lake Hillier on Middle Island, Australia, is the color of bright-pink bubble gum. Researchers recently discovered that the lake's unique color is caused by algae, halobacteria, and other microbes. Additionally, this body of water is extremely salty—just as salty as the Dead Sea. It's harmless to swim in, but you can't just hop in for a quick lap. Lake Hillier is only viewable from the sky by a helicopter or plane ride over the island.