SoSmellyAir

On Google Maps, if you take Portola Parkway north, past the CA-241 toll road, and turn right at the next intersection, it is Limestone Canyon Road.

Has anyone ever ridden a bike there? Is the road paved?

I always turn right onto Whispering Hills (the last intersection before CA-241) and descend back into Irvine. So I am wondering what is up there?

MikeEckhaus

Limestone Canyon is not public access, and it’s not paved. The only time you can access it at all is if OC Parks opens the area for hiking or mountain biking (or horseback riding?) which they do occasionally. I haven’t done an OC Park hike in a couple years, so they may have increased or decreased access to that area. It’s a great hike or mountain bike area, and you can get to a place called the Sinks, which looks like a mini Grand Canyon. But definitely not for a road bike.

SoSmellyAir

Thanks. I read about the sinks when I Googled Limestone Canyon Road, and understand that the area is only occasionally open for hiking.

SoSmellyAir

On Google Maps, if you follow Portola Parkway all the way east, right before you get to the CA-241 toll road, you can turn right onto Fairgreen, then there is a path (which is only visible on Satellite View) which meanders all the way past a few communities under construction all the way to and past Interstellar (near the intersection of Interstellar and Thrush.

Does anyone know if this path is accessible? Is it paved? Or would I need a gravel bike? Thank you.

* I drove by to take a quick look, and the start of that path is fenced off and gravel.