The Bioluminescent, Puerto Mosquito. Vieques, Puerto Rico

Mosquito Bay boasts one of the craziest natural phenomena I’ve seen, bioluminescence.

This unique bay contains up to 720,000 single-celled bioluminescent dinoflagellates per gallon of water. These half-plant, half-animal organisms emit a flash of bluish light when agitated at night. The high concentration of these creatures (Pyrodimium bahamense) can create enough light to read a book from.

As all great natural things, this bay is in danger of being ruined by development.

Book a tour at Island Adventures Biobay Tours

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