Question: where are the 3 bioluminescent bays in puerto rico?
Answer: There are three bioluminescent bays (bio bays) in Puerto Rico — Mosquito Bay in Vieques, Laguna Grande in the north-east in Fajardo, and La Parguera in the south-west in Lajas. The biobay experience is pretty neat to see — the water glows when the microorganisms in it are agitated.