Sunlight passing through the wings of a Black Jacobin Hummingbird forms a prism of rainbows. (Photo: Christian Spencer)

Cameron Falls in Waterton Lakes National Park (Alberta) has a stunning waterfall. It normally flows with clear water, however, during periods of heavy rain the water gets stirred up with a sediment called argillite. The result is an incredible pink waterfall. Photo Credit: Rochelle Coffey