Took some friends new to hiking, to this nice little hike. This is a great hike for friends and family that come into town. They get a bit of work and there is some mild bolder scrambling. You get to drive to the top of South Mountain for some great views, and then you are in another world in the Hidden Valley. The 60' long "Tunnel", and "Fat Man's Pass" are pretty neat. This seems to be Chuckwalla World up here. We saw at least a dozen on the black rocks.