My wife and I hiked the arches and cave from the public beach access. It's labeled but easy to miss since it's very small with a small area to park a few cars across the street. Google directions take you past the point and closer to the paid private parking lot which features painted fences in a large painted sign. If you see these you have gone too far. Turn around and look for the small access point a few houses down. From the beach you will have to hike up the cliffs near the water to see the arches and eventually the cave. We went on the rainiest day on record so we weren't able to go down into the cave since climbing surfaces were slick and the waves were crashing into the cave making it possibly unsafe. But it looks possible with some climbing skills and dry surfaces. Still we were able to see the petroglyphs from the entrance of the cave and we had a lot of fun watching the waves crash against the rocks. There are also some holes that spew air and water when the waves crash. Overall a pretty cool place to visit.

Regardless of what you may read online there is only parking available onsite. The roadside is one lane in each direction with no shoulder. This place closes on the dot so plan accordingly and allot at least an hour to see it. The view is excellent and totally worth it. Restrooms located on site.

My wife and I visited on a Monday, parking along the road near the 7.6 mile marker. A few hundred feet east was a stairway down to the beach, marked with a sign. We made our way east along the beach (1/4 mile?) to the rock mound. The climb up might be challenging for some. Once on top be aware of unmarked holes that drop into the cave below. A quarry created by the Spanish makes for a natural ampitheater with views, and at the corner of the quarry is the entrance to the cave. A local, Daniel, offered to guide me and took me through the slot pathway and showed me handholds and footholds that I may have missed in the dim light. Daniel was an excellent guide, showing a variety of petroglyphs and natural features of this ancient religious site. The highlight of our trip to PR for me.

Here is the scoop. Some of these reviews are quite old, so I wanted to offer an update on the entrance fee and the parking, etc. There is a parking lot, which you can pull into, but then they have everything roped off so that you cannot access the cave from the parking lot without first being funneled into a ticketing area. The ticketing man has a big brochure with lots of photos, and he is charging $10 a person, not $10 a car, to go visit the cave and the arches. I don’t know if you would be able to access it in the evening (note that they close at 5 PM) and perhaps park your car somewhere and then climb under a rope, without paying the fee, but during the day you absolutely have to pay this fee. There is also a way to access the cave if you walk up from the beach. But if you are parking in the parking lot right next to the cave, you pay $10 per person. On another forum, they mentioned that there were a lot of break-ins lately in some of the cars near the beach, so it may be worth it to park in the lot which is monitored and pay the $10 cash each to access the caves and arches. I will note that the man who was handing out the brochures and taking the ticket money spent about 20 minutes telling the couple before before us all about the cave, and then when we asked him the same information, he just gave us one sentence and told us to watch out for holes. So don’t know what was happening there. Perhaps he was just tired of giving out info! The cave itself is wonderful. Some other outdated information notes that there is a ladder that you can use to access the interior of the cave, but that is no longer in place. In order to access the interior of the cave, you need to crawl through a very narrow passageway; those who are claustrophobic would not be able to do so! And then go down into the cave. We saw a few folks doing it, but most people did not. It is delightful to climb around on top of the cave and all around the cave. Some people talked about swimming in the cave and looking at the drawings in the cave, but if the only way to access it now is through that small crack in the wall, it’s going to be difficult for most people. Our “ticket-guy” told us that he preferred the arches to the cave, and in some ways he is correct as the view is quite dramatic (It’s actually quite dramatic everywhere in this area, the views are just really beautiful). But in terms of drama, the arches are a little more impressive. To access the arches, you need to walk on a path through some bushes. It’s a bit hard to find, but if there are other people there, you can hear them on the other side. There are only so many small little footpaths, so if you turn down the wrong one, simply turn around and try another one. It’s not like it’s a massive maze with lots of little footpaths. You will find the arches if you keep looking. Safety note: when you are visiting the Cave, look out for big holes. These are large enough to fall through and could be very dangerous! Overall, a great stop on our journey from the east to the west, that allowed for some dramatic photographs.