Good Forest Preserves for little kid bike riding? We don't have sidewalks in our hood (unincorporated DP) and my mom wants to take my daughter for some bike rides while she's here (I have a c section scheduled for Friday, so this is grandma time haha). We have been to Beck Lake and it was a) packed last time and b) a pain to get to the trail where she can actually ride. So any other ones around here that people recommend?