You have found Cullen Bryant Park! This little park has a playground and lots of green space. It's not officially a dog park, but there are often dogs around.
You can access the park by parking on a nearby street, or via a long staircase from Taylor Creek Ravine.
This cache is well hidden. Please be respectful of nature and gentle, you shouldn't need to use force. Replace as found, please make sure camo is back in place. Cache is delicate - try to be careful when handling.
BYOP, and you will need tweezers to extract the log.
Congratulations to ikkipants, Bouffe, Catapocalypse and B@dwolf on FTF!