Casa de Pedra Cave waterfall illusion

by Lucid Arthur: British Broadcasting Corporation

The rainbow halo circling overhead is what sells it, but nobody wants to talk about the part where the waterfall isn't coming from the clouds at all. Giba Morais shot this at Casa de Pedra Cave in São Paulo, Brazil, and the water looks like it's dropping straight out of the sky. It's an optical illusion. What's actually happening is water running out through a fissure in the rock just over where the cave opens up. Morais said they caught this natural phenomenon at just the right moment and from the perfect angle. Fr