Big Rock Lateral (Tuna Canyon Park)
There aren’t many places in the eastern Santa Monica Mountains where you can hike on a Saturday afternoon and not see a soul (or in my case, none until I was almost back to the car), but obscure Tuna Canyon Park is such a place. As the crow flies, the park doesn’t seem all that far from Malibu and Topanga, but getting there can be a little tricky, especially since the section of Tuna Canyon Road below the park is one-way southbound, meaning that it can’t be reached from Pacific Crest Highway (although if you’re coming from Santa Monica, you can return this way). Even Tuna Canyon Park’s name can be confusing; it can easily be mistaken for the similar La Tuna Canyon Park in Burbank.
The good news is that once you get to the park, navigation couldn’t be easier. There are several trails and fire roads here to explore. The destination of this route is the Big Rock Lateral, a fire road in the southwestern corner of the park, where you can enjoy great ocean and mountain views.
From the fire road, head uphill past the white gate and take your first right onto Big Rock Motorway. The road heads through some pleasant rolling hills, passing by some red sandstone rocks. The ocean views are good already, and will get better.
After a few minutes, stay right on the Big Rock Motorway as the Budwood Motorway branches off to the left. The road makes a descent and then a short climb to reach a junction with the Big Rock Lateral. Head right and downhill on a slightly rougher road. Big Rock Lateral passes by two clearings, where you will make hard lefts and continue downhill, to the road’s end. Here you can sit and enjoy some ocean views. Being a reverse hike, the ascent back to the car is a bit of a workout, but you have more scenery to enjoy on the way, including Saddle Peak and Las Flores Canyon. This hike is definitely an overlooked treasure of the Santa Monica Mountains.
Text and photography copyright 2014 by David W. Lockeretz, all rights reserved. Information and opinions provided are kept current to the best of the author’s ability. All readers hike at their own risk, and should be aware of the possible dangers of hiking, walking and other outdoor activities. The author does not take any responsibility for injuries sustained during hikes or walks on the routes described here. Check the informational links provided for up to date trail condition information.