Any good dog parks in the Philly area?

CoCo's one year birthday is coming up this sat. and i wanted to do something extra special perhaps taking her to a dog park,

does anyone know of any good dog parks in the philly area?

tia!

eta CoCos post

I'm so excited! Mommy's so excited! We dont know what to do but we know we have to do something extra special!!!!
Mommy is thinking of taking me to Philly and going to a dog park if she can find a good one.... she thinks I'll enjoy that.... Mommy already spent more than enough money for my graduation, so she is thinking of having just mommy and me time by going some where different for a day....
Sounds good?  Any other suggestion?  A cake perhaps?  CoCo ahs way more than she needs/want...but maybe I should just get her one of those self waterer thingie... CoCo doesnt like stagnant water that's been sitting out... so.... yeah....
Sounds good?  I need helps and ideas!  What do you guys do for your furbabies birthday???!?!?!
I'm so excited!!!  CoCo has to be THE best thing that has ever happened in my life.  I tell her i love her a dozen times a day.  She follows me around whereever i go... only wakes up when i wake  up, and is just a bundle of love!!
I'm so proud of her...we had a huge party at our house the other day, and not only was coco great with the kids, letting them play fetch with her and tug of war and what now... but the infants... 4 months old and 9months old...she would cautiously come over to them and sniff 'em and then gently licked the bottom of their paws!  it was so cute!  she didnt give a single bark to all those strangers that came over and she didnt go begging for food from anyone!  i was impressed!
anyways... back on topic... help us decide!