page_title: Parque Nacional de las Cavernas del Río Camuy
section_title: Tri-Towns Sinkhole ("Sumidero Tres Pueblos")
hierarchical_section_title: Parque Nacional de las Cavernas del Río Camuy / Attractions / Tri-Towns Sinkhole ("Sumidero Tres Pueblos")
caption_attribution_description: Camuy, 00627, Puerto Rico
context_page_description: The Parque Nacional 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. The cave system was "discovered" in 1958 and was first documented in the 1973 book Discovery At The Río Camuy by Russell and Jeanne Gurnee, but there is archaeological evidence that these caves were explored hundreds of years ago by the Taíno Indians, Puerto Rico's first inhabitants. 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.
context_section_description: "Sumidero Tres Pueblos" is a giant sinkhole measuring 650 ft (195m) wide.  The Camuy River can be seen 400 ft (120m) below from three observation platforms that are located at different points alongside the opening of the impressive crater. The sinkhole is located where the borders of the towns of Camuy, Hatillo and Lares meet.  Each town has its own platform overlooking the sinkhole.
caption: The Camuy River
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