It is a popular tourist attraction to Puerto Ricans as well as tourists visiting from outside Puerto Rico. An admittance fee of $3.00, established by the owner of the gas station, is required to enter the trail to the cave on Saturdays and Sundays due to its popularity. The number of visitors is at its most popular on both Saturdays and Sundays from early morning to an hour before nightfall. The cave nor the land in which the cave is located at are owned by the Puerto Rico Department of Natural and Environmental Resources.
Cueva Ventana is located in Arecibo, close to the Arecibo/Utuado border, just off of Route 10. It is amazingly easy to get to once you know how. Actually, there are 2 caves here that one can enter — and they are right next to each other.This area covers approximately 90 miles from Rio Grande to Aguadilla. You will see examples of Cupey tree Ficus and whose leaf used the Spanish to write letters, and which when dried is similar to leather. At the end of the road you will find a ladder where you can go down to the main cave has a cavity of some 20 feet. Lap up the stalactites, stalagmites, bats and insects characteristic of the ecosystem. At the end of the cave is an impressive opening in the mountain that gives you a beautiful view of the mountains of the area and the Rio Grande de Arecibo, hence comes the name of the cave. Back, when climbing stairs, you will find a cave a little smaller, but equally impressive. Here’s another opening in the mountain where hundreds of swallows prey to nest.