Bioluminescence on a beach creates a stunning natural display, where the waters light up with a blue or green glow. This phenomenon is caused by organisms like phytoplankton, which emit light as a response to stress, such as when waves crash or when they are disturbed by movement. The effect can be magical, turning the beach into a starry landscape. Some of the most famous bioluminescent beaches are found in the Maldives, Puerto Rico, and Australia. Have you ever visited a bioluminescent beach?