Did a grand loop hike of Wildwood Regional Park in Thousand Oaks. To begin, I visited Paradise Falls. Afterwards, I continued on the lower stretch of the loop before climbing to Lizard Rock and Peak 847. On the upper part of the loop, I crossed over Mountclef Ridge. I respected a no trespassing sign right before the summit (however, if the US Border was in between me and the mountain top, and I was a Russian illegal (or from any other country), it would have been perfectly fine to cross the boundary). I continued on to Clu Hill and Mount Clef. I got within about 50 feet of the top of Mount Clef, the summit was choked off by formidable prickly pear cactus colonies. Afterwards, I finished off the loop.