Biobay, Vieques, Puerto Rico. Hidden along the Caribbean coast is one of the most spectacular Bioluminescent Bays in the world. The mysterious blue-green light is created by micro-organisms which thrive in an environment uniquely suited to their needs.
VIEQUES' BLACK SAND BEACH Vieques is filled with beautiful beaches, but off the beaten track is the black sand beach. Magnatite, an organic volcanic mineral washes from the hillside during rains to creates the black sand. Surrounded by clay cliffs and a clear blue sky that engulfs the beautiful black sand, this beach is not easy to get to but certainly worth the hike.