Rio Camuy Cave Park 
PR-129
Lares, Camuy, PR 00669
787-382-0119
http://www.puertoricodaytrips.com/rio-camuy-caves-park/
Park: Caving, Hike, Picnic, Walk
The Camuy River Cave Park (Spanish: Parque de las Cavernas del Río Camuy) is a cave system in Puerto Rico. It is located between the municipalities of Camuy, Hatillo and Lares in northwestern Puerto Rico, but the main entrance to the park is located in Quebrada, Camuy. The caverns are part of a large network of natural limestone caves and underground waterways carved out by the third-largest underground river in the world, the Río Camuy (Camuy River). Over 10 miles of caverns, 220 caves and 17 entrances to the Camuy cave system have been mapped so far. This, however, is only a fraction of the entire system which many experts believe still holds another 800 caves. Only a small part of the complex is open to the public. The 268-acre park built around the cave system features tours of some of the caves and sinkholes, and is one of the most popular natural attractions in Puerto Rico. Tours are offered on a first-come basis, and a fee is charged. Call to confirm hours and availability. The park has a wooded area with picnic pavilions, a play area for the kids, walking trails, a little restaurant, and a souvenir shop. The audio guide players are available in both English or Spanish languages.