Río Camuy Cave Park
Parque Nacional de las Cavernas del Río Camuy
One of the three largest underground river systems in the world. The giant Cueva Clara is filled with stalactites, and the sinkhole at its entrance is covered in tropical plants.
Río Camuy Cave Park lies in the karst region of northwestern Puerto Rico. The Camuy River has carved an underground river system more than 10 kilometers long through the limestone, one of the world’s largest cave systems with underground rivers. When the park is open, the standard route is to take a small train down into a densely forested sinkhole, then walk into Cueva Clara (Clara Cave), about 50 meters high, to see stalactites, stalagmites, and roosting bats. Sometimes viewing platforms overlook the underground river and a sinkhole more than 100 meters deep. Tickets cost about US$18, entry is limited each day, so arrive early. Note that the park was closed for a long time after the 2017 hurricane, and in the 2020s it has also paused several times for maintenance, so check the official website for the latest status before you go. It is about 1.5 hours’ drive from San Juan and can be combined with Cueva Ventana and the Arecibo Lighthouse for a northwest day trip.
Opening hours
When open, usually Wed–Sun 08:30–15:30 (closed several times in recent years; check official announcements)
Nearby sights
- Arecibo Observatory Science and Visitor Center
- Cueva Ventana
- Cueva del Indio
- Toro Verde Adventure Park
- Casa Bacardí
- Castillo San Felipe del Morro
- Casa Blanca Museum
- Puerta de San Juan