Bioluminescence is one of the most breathtaking experiences in Costa Rica. This natural light show, created by a chemical reaction in a kind of plankton known as Dinoflagellates, illuminates the dark beaches along the country's Pacific Coast with a mesmerizing bluish glow. Interestingly, this glow serves as a defense mechanism against predators, startling them with a flash of light.
Conditions must be perfect to see bioluminescence, and it cannot be predicted, however, permanent occurrence of bioluminescence does happen in Costa Rica, along with just a few other unique areas in tropical countries. Some of the most popular spots to see it are on the Nicoya Peninsula, and Playa Minas, about forty-five minutes from Las Catalinas, but many beaches have reported luminescence.
Venturing onto the beach shortly after sunset might offer a glimpse of the bluish glow, but for a more immersive experience, consider a nighttime kayak or paddleboard excursion on the water. Alternatively, try night snorkeling for an adventurous opportunity to witness bioluminescence and feel as though you are swimming among the stars. Optimal conditions for witnessing the mesmerizing glow along the coastline are during the drier months, as the rain can alter the viewing conditions of the water.
If you are interested in booking a tour, don't hesitate to reach out to town's concierge.