Embark on an underground adventure at the Rio Camuy Cave Park, featuring a spectacular array of caverns securely adapted for visitors. The caverns which were formed by the flow of the Rio Camuy over one million years ago, is one of the largest systems of caverns united in the Western Hemisphere. The excursion will take you through the 170 feet high Cueva Clara, where nature adorns its towering ceilings with crystalline stalactites, its walls with flowing stone tapestries and its floors with mounds of stalagmites. The Rio Camuy, which runs through the cavern's interior, is also one of the most spectacular underground rivers in the world.
In the northwest mountains of the island, nestled among the karst-country hills, is the Arecibo Ionospheric Observatory, or Radio Telescope, the largest of its kind and one of the most important research facilities on the face of the earth.
The huge dish—more than a dozen football fields could fit inside—sits in a sinkhole and is forever aimed at the sky, tuned to detect the slightest sounds emitted by the farthest stars
In the Visitors’ Center you will see how the colossal structure is used to study radio emissions from distant galaxies, quasars, pulsars and many other cosmic sources. The exhibits are interactive and contain extensive information on astronomy and atmospheric science. Entrance to Observatory is included. Entrance fee included. |