This is very cool! Take the time and drive to the beach park. The beach is very rocky but you can put your toes in the cool water. From this park you can take the petroglyph trail. I will say that it is hot and you should bring a bottle of water. I agree with the other reviews you will need good footwear and be prepared to walk on uneven serfices. This place is free to visit and once you start the walk you will see the petroglyphs which are very intersesting. One thing to know at some point we lost the trail. It is not well marked after a certain point. We had a long hot walk back along a service road so I am still not sure where we went wrong. My advice is if you are not sure of the trail then just turn around and go back. You do not have to go far on the trail to see the petroglyphs so it is well wortht the visit.