The bioluminescence of the Indian River Lagoon in Florida releases a glowing blue light in the dark of night when disturbed. This twinkling light is caused by dinoflagellates, microscopic single-celled organisms that releases light as a defense when it receives pressure on its cell walls. This lagoon is so full of these organisms, you can't avoid making a disturbance. Even the fish swimming through the warm water create an eerie glow. It's truly a magical experience.