The phosphorescent bay off of the coast of La Parguera, a small fishing village on the Southwest corner of Puerto Rico. The luminescent effect in the bay is the result of a permanent population of tiny micro-organisms called Dinoflagellates. These animals produce a chemical spark of light when disturbed in the water. They can produce striking effects of green and white sparkles that can only be seen at night....and no, don't worry - it's not radioactive!
Meet the Guánica Dry Forest Reserve: 10,000 acres of dry land inhabited by over 600 uncommon types of plants and animals, including 48 endangered species and 16 that are unique to Puerto Rico! A surprisingly captivating terrain, splashed with pastel colors and bursting with wildlife, Guánica's Dry Forest is the perfect counterpoint to the verdant El Yunque Rainforest.
There are only two other places in the world where you will find a cave system as massive or dramatic as the Río Camuy Cave Park - and neither of them has a tropical underground river thundering through it! Visitors ride a trolley that descends into a sinkhole lined with dense tropical vegetation while a guide describes the sights. After a walk across ramps and bridges and through the dramatically illuminated, 170-foot high Cueva Clara, another tram shuttles you to a platform overlooking the 400 foot deep Tres Pueblos Sinkhole.