Every year, hundreds prepare and gather in Yosemite Valley in February, in hopes of witnessing one of the world’s most amazing natural phenomena, the sunlit Horsetail Fall, also known as the natural ‘Firefall.’ The stunning visual phenomenon occurs when Horsetail Fall, an ephemeral (seasonal) waterfall that flows after snow melt or heavy rainfall on the west side of El Capitan, pairs with a cloudless sky and bright orange sun setting...