1. Hillier Lake in Australia
This lake in Western Australia is small in size, but big in color. Its water is a bright bubblegum pink color, and even retains its hue when taken from the lake and put into a container. A scientific mystery, there has been no definitive reason why the lake’s water is such a rosy hue, but it is hypothesized that because the water so salty, the lake is home to salt-loving microalgae that produce carotenoids, giving the water a pink pigment. You can even take a dip while you visit since the water is completely safe for humans to swim in.