Canine Corners 9550 Milden St, La Mesa, CA91942 Divided into three fenced areas in the northeast section of Harry Griffen Park, this grass-and-sand park lets small dogs…More (under 30 lbs.) frolic while big dogs can chase them along the fence, safely out of reach. Dog owners can relax on concrete benches in the shade or plastic chairs. Pooper scoopers are available along the fence, and donations are welcomed in an old parking meter at the entrance. No dog food or treats are allowed, but owners may bring Frisbees, balls, water jugs and buckets.