Bioluminescence is a chemical reaction produced by living organisms to emit light. The daylight vanishes, but your adventure will be just beginning! Schools of fish create a phosphorescent trace which can look like a glowing cloud in the water. Explore this natural phenomenon by boat, observing as the water beneath you glows and sparkles with even the movement of your hands. An experience that is not to be missed! Best sighting is on dates close to the new moon phase.