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Get an insider’s look at two of Puerto Rico’s most massive attractions, the Arecibo Observatory and Rio Camuy Caves Park, on this 9-hour day trip from San Juan. Descend inside a million-year-old cavern (one of the three largest underground river systems in the world) on your Camuy cave tour. Then prepare for an out-of-this-world visit to the world’s largest radio telescope at Arecibo, a giant concrete bowl wedged in the hills of Puerto Rico’s northern coast.

Photo of Arecibo Observatory - Arecibo, Puerto Rico, Puerto Rico. Join us on our Arecibo Observatory Tour here in Puerto Rico with PR Fun Tours.

North Coast of Puerto Rico from San Juan: Camuy River Cave Park, Arecibo Observatory and Cueva del Indio Explore some of Puerto Rico's highlights on this full-day tour. Visit one of the world's largest caving systems, visit Arecibo Observatory, see petroglyphs created by Taino Indians plus spend time at a black, magnetic, sand beach. Learn about the area from your local guide. Hotel pickup and drop-off is included.After pickup from the San Juan area, you'll head West towards t...

Book your adventure - A trip to Puerto Rico is not complete without descending into the depths of a million year old cave! Few cave systems in the world are as massive or dramatic as the Rio Camuy Cave Park. If that's not enough, wait until you see the Arecibo Observatory, the world's largest radar/radio telescope, nestled in the tropical mountains of northern Puerto Rico. This tour takes you from San Juan to

San Juan Puerto Rico Tour - Put you in contact with the Arecibo Observatory