We only did 2-3 rides from campground and it was not the nicest roads to use (quality of asphalt - holes and I mean really bad, very narrow streets, etc.) But the drivers are extra polite and give us all the space we need to cycle safely. Anyway, they can't go fast either. It really needs to be totally redone in many areas. Where new housing devlopments are it is superb. Stretches redone are perfect too. But overall, we would not take our bikes back in that section. When I spoke to the LBS he told me that there were not that many roads in that particular area really safe and I would have to go way further. So we ended up at the East bay trail. Which is awesome and well organized too.