Experience the Magic of Bioluminescence

Bioluminescence is one of nature’s most magical phenomena, where living organisms produce and emit light. In the waters near the Nicoya Peninsula, this glow is created by tiny microorganisms called dinoflagellates, which light up when disturbed by movement in the water.

The effect is truly breathtaking—every ripple, splash, or stroke of your hand creates shimmering trails of blue-green light, like a natural fireworks display beneath the surface. These microorganisms use bioluminescence as a defense mechanism, illuminating to confuse or scare off potential predators.

This rare and captivating phenomenon is best observed in calm, dark waters, making the Nicoya Peninsula one of the few places in the world where you can snorkel among these glowing waters. Experiencing bioluminescence is like stepping into a dream, where science and magic beautifully intertwine.