Our first stop was Cueva Ventana. The trail leading up to this cave is located next to a Texaco gas station (note: they were charging $2 for parking per car and $0.50 per person to use the bathroom) on route 10 towards Utuado. It's an easy hike up to the cave but it is unmarked. When you reach a fork on the trail, hang a left and soon you'll reach the first entrance to the cave on your lefthand side. We took the second entrance, which is lies further up the trail, because it was much easier to navigate. Do bring a flashlight, since it gets dark inside. After walking around in darkness for a few minutes or so, you'll start to see a bit of light filtering in. Shortly thereafter, you'll encounter the opening of the cave, which offers a breathtaking view of the very lush and green Utuado countryside.
Cueva del Indio, on the other hand, is located right on the beach and you'll have to descend a wooden ladder in order to reach it. Once you reach down inside the cave, you'll see petroglyphs which reportedly date back to the days of the Taino Indians. Before you this point though, you'll have to walk and climb along a jagged limestone surface. Needless to say, I would recommend wearing sneakers or walking shoes. There were also quite a few sinkholes, so watch your step! We easily found Cueva del Indio, which is located on Road 681 at km 7.8 in Arecibo, since there was a huge sign posted at the parking lot entrance (note: they also charge $2 to park). Both caves are visited more often by locals than tourists. There is no entrance fee to visit either Cueva Ventana or Cueva del Indio. Both caves are well worth a visit!