For a few days each February, Horsetail Falls in Yosemite National Park, California, U.S. turns bright orange, resembling molten lava pouring down the cliffs. This only occurs during this time of the year, as light from the setting sun reflects on the waterfall at just the right angle, leading to this mesmerizing view.From sailing stones to an eternally burning fire, we take a look at some of the most unusual phenomena that happen in these locations only.
Penmon, Wales
Although a rare occasion, the beach at the Wales village lights up in an ethereal blue glow as multitudes of bioluminescent plankton gather around the eastern coast of the island of Anglesey. The phenomenon only takes place when the plankton are disturbed. Late spring and early summer are the best time to see the event.
