My buddies and I want to go on a mild day hike in the san diego area. The trick is we want to "get away" from the rest of society which is hard to do in the san diego area. I have already looked up parks like torrey pines state reserve and the mission trails regional park but have not visited them myself. What is a good area (whether it be official or unofficial recreation area) in san diego where we can go to get away from other people, and ideally still have a picturesque location to hang out at?