although it's not entirely legal, camping on montara mountain is entirely safe. The best spot is in the small bowl inbetween north peak and peak mountain. I camped there over 30 times in one summer alone with no problems.
it's gorgeous on sunny days, the weather changes extremely fast in the summer, sometimes it's foggy and cold below 1000ft and above it its 80 degrees, sunny and windless! it's and interesting place, and right in my backyard!