Nearly 40,000 acres of open space on the historic Irvine Ranch have been designated a Natural Landmark by both the State of California and the U.S. Department of the Interior. This honor recognizes the exceptional value of these lands to California and the entire nation. This land is part of the 50,000 acres of permanently protected land preserved on the historic Irvine Ranch. The Irvine Ranch Natural Landmarks contain important natural habitats and unusual geological formations. The landscape is home to hundreds of species of plants and animals, including eagles, badgers, mountain lions, Tecate cypress trees, and many rare species of birds, reptiles, amphibians and plants. Scientists have identified this region as one of the world

Showed up and the gates were closed, locked, and said that there was no access. Very disappointing as I drove all the way here to find this out :(

6 days ago

Went back in March during the rainy season and the waterfall at the end was beautiful and there was water flowing through the trail. Went back during June and the waterfall was barely even a waterfall anymore. All the water dried up. Also found graffiti on the rocks (June) to stop and go back.

A friend and I started early in the morning at 6 am on a Sunday. ( my friend is not a hiker) It was cool weather to begin with and made the hike smoother. When we got to the cave there was no water but understandable because of the summer. We climbed up the cave but there was no rope to get up so you have to be careful. Later on the day it gets crowded with bees but they won't harm you unless you harm them. To the right of the cave up the hill is another way to get up to the top for a nice view. You have to climb and use ropes. Be careful when you go up , who knows how long they have been there but they were pretty sturdy. When you get to the top you have to come back down the same way , there is no trail that leads down , just a heads up. Brings lots of water and to make it easier on first timers I suggest you bring a thick rope of your own to help climb up some bolders and eventually the cave. Which has a small pool inside by the way. The hike was great , hard, challenging but doable and I will be going back when it's filled with more water.

Nice hike.

14 days ago

Once is good enough for me! Very nice, and a lot of rocks to climb!!!!

Awesome hike! Great end with the canyon! Would definitely recommend it! Not for the faint of heart

20 days ago