One thing everyone can agree on is that Mount Gambier's Blue Lake is very blue. "It's blue as the name says," Swiss tourist Kathrin Ottiger says while visiting a lookout at the lake this week. But why ...

Beside the ochre-colored gorges and turquoise coastlines of Western Australia lies a surprising hue: fuchsia pink. The state’s pink salt lakes have been a startling part of the landscape for thousands ...