Puerto Mosquito (Mosquito Bay) is located on the southern shore of the island of Vieques. This magical bioluminescent bay (bio bay) has been officially declared the brightest recorded in the world by Guinness Book of World Records 2008.


It is best experienced during a “New Moon” phase. In the waters of Mosquito Bay there are organisms named Pyrodinium bahamense, Dinoflagellates (dinos). These “dinos” are responsible for this amazing natural phenomenon. When the “dinos” come into contact with another organism or shaken they produce a bright burst of blue light.


Puerto Rico was blessed with 3 bioluminescent bays, the brightest is Mosquito Bay here in Vieques.


The Bay is small and shallow and the mouth of the bay is small, so the bright tiny organisms are trapped and protected in the bay, making it very, very bright.


The mangroves surrounding the bay provide the perfect nutrition for the Pyrodinium bahamense. Any changes in the delicate ecosystem can diminish the healthy balance of the bay.


Please come and join us for an amazing adventure! 


​​​About THE BIO BAY in mosquito bay