K.L.
Yorba Regional park is not far. It is a huge park with play equipment and a large duck pond.
The Santa Ana zoo is also a fun place but i am not sure if you can bring in your own food. you would have to check they have a good little website at
http://www.santaanazoo.org/index.htm
there is a train and carousel there along with the animals.
Good luck and Have Fun!!! first birthdays are so sweet.
Box Canyon Park is burned to the ground along with East Side Park sad to say... my kids bug me at least once a week asking if they have been rebuilt:(