Wherever you are, the underwater world changes drastically after sunset: Predators begin their hunts, bioluminescent algae glow in the endless black, and in the district of Kona on Hawai’i Island the moon is being replaced. On the sandy seabed massive spotlights turn on as dozens of people wait anxiously for what happens next: Clouds of plankton are drawn to the light of these artificial moons, and they bring with them the stars of this unique experience: giant manta rays. They glide majestically through the darkness, gracefully dancing around the lights, shades of black against an even darker sea.