I've been using this Berkeley's Pathways Map for a few months now as a tool to help locate new spots to photograph. These pathways are often lined with beautiful plants and trees. They seem removed from the city despite the fact that they are located in the middle of urban residential neighborhoods. So far, Keeler Path has been my favorite. You can see some photos of Keeler path here. I'm looking forward to checking out more pathways.
Map created by the Berkeley Path Wanderers Association.