We spent day 5 in San Diego. We went to the zoo, the Spanish Village Art Center, and the Museum of Natural History. There were so many other attractions in the Balboa Park area but we didn't have time for them all and we were dead tired by the end of the day.
We finished off the evening by walking along Mission Bay and eating at a great little Mexican restaurant that was right next door to our motel.
I will have photos of Day 5 up tomorrow. (I am too lazy to put them up tonight!) :-D