This was an easily accessible yet very crowded trail that was as quick as you wanted to make it. Easy to fit in to a day filled with other walling activities. Parking was fine (March) but the zoo parking lot can be used as overflow with a 3-5 minute walk to the trail head. The "hole in the rock" was always filled with people, so I never did decide to climb up. I walked around the base and went in one of the many cavernous areas. I love the history of this structure, which is why I went. The Hohokam Indians used the hole to watch how the sun came in and where it shone within the rock to determine the solstices and "time" in general some 1500 years ago. That's some cool history to walk around in! Great one for kids. They can safely climb this one.