The name says it all—located off the bay of Falmouth, the site of Luminous Lagoon becomes illuminated every night seemingly by magic. But there’s no sorcery involved when it comes to this glowing turquoise hue; it’s instead millions of microorganisms called dinoflagellates.
These special creatures flock to the Luminous Lagoon for its combination of both salt and freshwater, and they emit a phosphorescent light when disturbed. The Luminous Lagoon is one of only three places in the world you can see this type of phenomenon. And don’t worry—you won’t see any tiny organisms floating around. All you’ll see is iridescent blue.
The warm, shallow water of the lagoon makes it an ideal spot for swimming, and a boat ride through wouldn’t be complete without a stop for just that. Swimming here is often a highlight of an excursion, as you get to paddle around in water that is shimmering in shades of bright blue all around you.
To access Luminous Lagoon, you must head to Glistening Waters Restaurant and Marina in Falmouth. From there, you’ll board a boat that takes you to the lagoon.