Have been here a number of times and the petroglyphs are well worth visiting. There are approx. fifty or so and most are very clear and distinct. Be very careful where you walk in the gorge walls as some are on level rocks and can easily be stepped on if not careful. Have never needed 4wd to visit and is easily accessible to most vehicles and fitness levels. Best time is in the cooler months after rain as it is very hot and dry in the summer. Enjoy