oh ok, i know exactly where you're talking about. used to go out there when i skipped school (ssshhhhh....lol). there's some trails back there, well, there were some trails back there. it's been 10 years since i've been out there, they probably built houses back there by now. you know where white's nursery is? if you follow the road that whites is on until it dead ends, there's a warehouse back there, and behind it there's a bunch of strawberry fields, i used to ride those fields and all the woods behind the fields when i was a kid. i actually went out there not to long ago on my fiddy, and it's all still pretty much the same.
there's also some trails over by the bridge on miltry hwy, they butt right up to the water. you'd kinda have to know what you're looking for out there though, the entrance is pretty well hidden.