What is the magic of Mosquito Bay?

The magic in Puerto Mosquito is created by an unusual wizard called Pyrodinium bahamense (whirling fire of the Bahamas). This single cell microscopic plankton is able to create an eerie bluish light by mixing two chemicals whenever something touches it. The result is spectacular.



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The brightest bioluminescent bay in the world, Mosquito Bay in Puerto Rico, is worth a visit, but it does take some planning. Let's take a look at the best time to see the water's bright luminescence and how to plan your trip accordingly.

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“In other parts of the world, bioluminescence is seasonal,” explains Sharon Grasso, a tour guide on Vieques. “But here, the water glows brightly year-round.” Each night Grasso shows off the natural beauty of the bay.

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Visiting a destination with this name is sure to elicit the question, “Does Mosquito Bay have mosquitoes?” Yes, it does. But compared to other parts of Puerto Rico, you won't find nearly as many mosquitoes here.

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Before visiting Mosquito Bay, it's a good idea to check the weather forecast. Mosquito Bay is accessible all year, however, the bioluminescence is best noticeable here between June and November. The water is warmer and the organisms are more active during this period, resulting in a brighter and more intense glow.

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