I joined the Hunters and Jessica for a hike in the Pinnacles National Monument park today:
The park features some amazing rock formations, and several caves that can be explored. It's a pretty amazing park, that's so close to the Bay Area, that I'm surprised that I've never heard of it before. I can definitely see going back, in order to check out some longer hikes, and some more caves.
Unfortunately, I forgot to bring the good camera, so all of the photos that I took are from my iPhone 4. However, early on in the hike I enabled HDR mode, and by comparing before and after, I think that saved quite a few photos.