Cueva Ventana#16 in Best Things To Do in Puerto Rico
Cueva Ventana, which literally means "window cave," is another breathtaking outdoor adventure in Puerto Rico. During a visit here, you'll not only hike through a limestone cave, you'll also see stone engravings and pre-Columbian petroglyphs. But the cave's main draw is its namesake view. You'll reach a circular opening in the cave that overlooks a lush landscape.
To visit this wonder, you must join a guided tour. The hourlong trips are given by trained biologists to help tourgoers learn more about the flora and fauna in the cave as well as the Taíno Indians.
Recent visitors said a trip to the cave is worth it, particularly for the views at the "window." While many found the tour to be informative, others felt that it had a slow pace and found the stop to be overrun with tourists. In addition, though it's an easy hike, travelers advised wearing sturdy shoes and comfortable clothes.
Cueva Ventana is located in Arecibo, approximately 10 miles northeast of the Arecibo Observatory and 55 miles west of San Juan. Parking is available on-site. Tickets cost about $19 for visitors and $10 for Puerto Rico residents (with ID). There's a slight discount on tickets if you purchase them online. The cave welcomes visitors from 10:30 a.m. to 4:30 p.m. daily year-round. Tours depart about every 90 minutes beginning at 10:30 a.m. Reservations are not required, but you must be at the cave 30 minutes before your tour departs. No children younger than 5 may take the tour. For more information, visit Cueva Ventana's website.
More Best Things To Do in Puerto Rico
#1 Bioluminescent Mosquito Bay (Vieques)
This south Vieques beach might not sound like much, but it's one of travelers' favorite experiences in Puerto Rico. During the day, Bioluminescent Mosquito Bay is your stereotypical Caribbean hideout but at night, the waters emit a blue glow from the organisms, called dinoflagellates, that live there. More than 600,000 bioluminescent dinoflagellates live in each gallon of bay water, and recent travelers have been amazed by just how much visibility these tiny creatures provide.
Avoid visiting the bay during a full moon; the microorganisms aren't as visible then. Also aim for a quiet approach. Recent travelers recommended going out in a kayak to get the full effect of the glow and to prevent disturbing the dinoflagellates.
Explore More of Puerto Rico
If you make a purchase from our site, we may earn a commission. This does not affect the quality or independence of our editorial content.