Decent hike with lots of trails (lots of the same trails)

Comments: NOTE: comments only refer to the small section of Walnut Creek that we traversed. We hiked this with a six year old and a medium-sized dog on a Tuesday afternoon. The trailhead is located in the middle of the Walnut Creek Metropolitan park, so it is in a fairly busy area to start off with. On the positive side: there are many, many different small trails running throughout Walnut Creek, with excellent signage and a trail map posted at strategic positions throughout the park. On the negative side: the trails are a bit on the repetitive side and very easy (this could easily be a positive); also, we experienced a garbage-like smell in various areas. Overall, we would say that Walnut Creek is a good choice for people who want quantity, since there are supposed to be 17 miles of trails wound up within Walnut Creek proper.