AH Boo! I just moved out of Irvine in Dec. Are you an Anteater too?
How old is your pup? If he has all his vaccinations, and full imunity, you can try the dog park. It's not too far from the UCI campus. Also... if you live near Harvard, and Barranca, there is a park there that a lot of people take their dogs to in the afternoon for a stroll.