Yawning before us is the opening to Cueva Clara, the largest of likely more than 1,000 caves within the Camuy River Cave Park. Archaeologic evidence suggests these natural limestone caverns may have been explored by the island’s first inhabitants, the Taíno Indians, but they remained undocumented until 1973. A fraction of the system is open to visitors who wait patiently to step onto a tram and journey down into the natural wonder.
Feeling like a time traveller who stepped into Jurassic Park, we descend by tram to air that is thicker and mustier than the stuff on top. Fortunately, there is penetrating daylight in most sections of the cave and no one feels claustrophobic. The tour lasts about one and a half hours and is led by a local guide for a fee of $15, which includes the supplementary audio guide.
Dabble Savvy: Most hotels offer packages to see main tourist sites.
If you’re travelling with children, a trip to Arecibo Lighthouse Park can extend the day’s adventures. The small theme park is well kept and its replicas of Columbus’s ships, the Nina, Pinta and Santa Maria, remind you of all that history you learned back in school.