Back when I first started geocaching, there was a cache hidden somewhere around Bark Park, but it had a slew of DNFs, so I never bothered to look for it. A few months later, the cache was archived. Now, there's a new dog in town!
You don't have to go into the dog run to access this cache. You're looking for a green bison tube, log only. Should be pretty easy for anyone who isn't overly height challenged. Have fun!