Blue Bioluminescent Water
This photo taken in the Persian Gulf shows what appears to be bright blue water crashing against the shoreline. Spoiler alert! This isn’t an alien world, a digital trick, or food coloring in the water. The blue is caused by bioluminescent phytoplankton, which only luminesce when they are disturbed by someone throwing a rock in their vicinity or a human dipping their toes in the water. Sometimes, even the waves crashing can activate this color change.