A relaxing, easy ride to the Sinks (Wilderness Access Day Only!)”
— Phil Reyes
This trail is only open on Irvine Ranch Natural Landmark's Wilderness Access Days. Cyclists, hikers and equestrians have to sign up prior to Open Access Days, held about once every 3 months or so. There are only so many slots available to participate. This trail is not open on days not authorized by the Conservancy.
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Family Friendly: Barely noticeable elevation gain, wide trail, and scenic.
This trail isn't about a technical ride or elevation gain/descent, it's about canyon scenery. The trail does gain about 500 ft of elevation but you hardly notice it. The trail follows noisy Santiago Canyon Road for a little bit, but after you are behind the ridge, it's dead quiet.
The fire road is in good condition, with a couple soft sandy spots but no big deal. It's half shade, half sun. Limestone Canyon Road traverses a few meadows and oak forests, and at the end the rider is rewarded with a stunning view of the Sinks, OC's mini-grand canyon. Good for beginners.
Limestone Canyon Road continues beyond the Sinks but it was closed off the day I went to Wilderness Access Day.